Re: OT: Is it ok to close connection in finalize() ?
Thanks guys for the input... yeah I understand that i can't predict when the
gc will be run..
The reason I ask is that, I was (unfortunately) inherited with some badly
designed code and I really dont have time to inspect it line by line to see
whether each opened connection is closed or not..
So I thought of using finalize() as the quick-fix solution. :-)
Anyway... I will use finalize() momentarily and see whether it works... if
it does not, I will have no choice but to read and inspect the code line by
line. *sigh*
Regards.
Rosdi.
- Original Message -
From: Mike Jackson [EMAIL PROTECTED]
To: Tomcat Users List [EMAIL PROTECTED]
Sent: Friday, February 21, 2003 12:48 PM
Subject: RE: OT: Is it ok to close connection in finalize() ?
I've never heard of issues with putting things in finalize(), but I
haven't
really looked into it. However my issue is that you can't predict how
quickly the objects will be collected (see other post).
I'm not a java expert, I just play one on tv.
--mikej
-=-
mike jackson
[EMAIL PROTECTED]
-Original Message-
From: Jake Robb [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 20, 2003 8:36 PM
To: Tomcat Users List
Subject: Re: OT: Is it ok to close connection in finalize() ?
And now all these other guys say that using finalize() is bad practice.
I
have to ask... Is it bad practice just for the reasons Mike Jackson
described, or does the use of finalize() in general actually
cause problems
with the JVM? I've not heard that before. The 1.4 API makes no
mention of
any issues.
Details on issues with finalize() would be appreciated, if that is
indeed
the case.
-Jake
Jake Robb wrote:
I apologize for not being familiar with this, but I have some insight
to
offer. Bear with me:
Is ConnCache your own class (i.e., did you write it)? If it
is, I'd put a
call to close() in the finalize method of that ConnCache, not
GeneralConn.
If it's not, I would expect that has already been done.
If ConnCache not your class, and it does not close its own
connection, then
yes, you're doing it right. There shouldn't be any issues with that
approach.
finalize() is indeed guaranteed to run upon garbage collection, which
in
turn is guaranteed to happen. However, garbage collection can
happen at any
time, so the connection may not be closed immediately. If this
is an issue
for you, you can call System.gc() to force it to garbage collect
immediately.
-Jake
Rosdi bin Kasim wrote:
This is a bit off topic.
I am using connection pooling, and in my code, I open all the
connection I
need in an object constructor.
Then I will close this connection in finalize(), which
(according to what I
read) will be executed during java garbage collect.
--- sample code --
public class GeneralConn {
private ConnCache connCache;
//open connection during object creation
public GeneralConn () {
try {
connCache = ConnCache.getInstance();
dbConn= connCache.getConnection(); //grab a
connection from
the connection pool
}catch (Exception e) {
System.out.println(Fail to open connection: +
e.getMessage());
}
}
//close when this object is destroyed
public void finalize () {
try{
dbConn.close();
dbConn = null;
}catch (Exception e) {
System.out.println(Fail to close connection: +
e.getMessage());
}
}
}
Would this be okay? is it guaranteed that finalize() will be
executed during
garbage collect??
Regards,
Rosdi bin Kasim.
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HELP: how to run Tomcat 4.0.3 with Jrockit 8.0 ?
Tomcat 4.0.3 can run under Jrockit 8.0, because MissingResourceException
will be thrown at org.apache.catalina.util.StringManager's constructor:
private StringManager(String packageName)
{
String bundleName = packageName + .LocalStrings;
bundle = ResourceBundle.getBundle(bundleName);
this line
}
java.util.MissingResourceException: Can't find bundle for base name
org.apache.naming.resources.LocalStrings, locale en_US
at
java.util.ResourceBundle.throwMissingResourceException(Ljava.lang.String
;Ljava.util.Locale;)V(Unknown Source)
at
java.util.ResourceBundle.getBundleImpl(Ljava.lang.String;Ljava.util.Loca
le;Ljava.lang.ClassLoader;)Ljava.util.ResourceBundle;(Unknown Source)
at
java.util.ResourceBundle.getBundle(Ljava.lang.String;)Ljava.util.Resourc
eBundle;(Unknown Source)
at
org.apache.naming.StringManager.init(Ljava.lang.String;)V(StringManage
r.java:115)
at
org.apache.naming.StringManager.getManager(Ljava.lang.String;)Lorg.apach
e.naming.StringManager;(StringManager.java:260)
at
org.apache.naming.resources.BaseDirContext.init()V(BaseDirContext.java
:140)
at
org.apache.naming.resources.FileDirContext.init()V(FileDirContext.java
:124)
at
org.apache.catalina.core.StandardContext.start()V(StandardContext.java:3
303)
at
org.apache.catalina.core.ContainerBase.start()V(ContainerBase.java:1123)
at
org.apache.catalina.core.StandardHost.start()V(StandardHost.java:614)
at
org.apache.catalina.core.ContainerBase.start()V(ContainerBase.java:1123)
at
org.apache.catalina.core.StandardEngine.start()V(StandardEngine.java:343
)
at
org.apache.catalina.core.StandardService.start()V(StandardService.java:3
88)
at
org.apache.catalina.core.StandardServer.start()V(StandardServer.java:506
)
at
org.apache.catalina.startup.Catalina.start()V(Catalina.java:781)
at
org.apache.catalina.startup.Catalina.execute()V(Catalina.java:681)
at
org.apache.catalina.startup.Catalina.process([Ljava.lang.String;)V(Catal
ina.java:179)
at
COM.jrockit.reflect.NativeMethodInvoker.invoke0(ILjava.lang.Object;[Ljav
a.lang.Object;)Ljava.lang.Object;(Native Method)
at
COM.jrockit.reflect.NativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.
lang.Object;)Ljava.lang.Object;(Unknown Source)
at
COM.jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;
[Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source)
at
java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)L
java.lang.Object;(Unknown Source)
at
org.apache.catalina.startup.Bootstrap.main([Ljava.lang.String;)V(Bootstr
ap.java:243)
E:\jakarta-tomcat-4.0.3\bin
However, Tomcat 5.0 can run with Jrockit 8.0. I have compared the
StringManger of the two versions, and their constructor is same. Neither
Tomcat 4.0.3 or Tomcat 5.0 has LocalStrings_en_US.properties file in
their jars.
Is there anybody could tell me how to run Tomcat 4.0.3 under Jrockit
8.0.
BTW, my machine is windows 2000 server (locale is en_US).
RE: Is it ok to close connection in finalize() ?
If you don't run close connection in finalize, can you be sure that the
connection was closed if an exception is thrown?
Chris Catton
BioImage Database Development Manager
Department of Zoology
University of Oxford
OX1 3PS
Tel: +44 (0) 1865 281993
email: [EMAIL PROTECTED]
web site: www.bioimage.org
-Original Message-
From: Rosdi bin Kasim [mailto:[EMAIL PROTECTED]]
Sent: 21 February 2003 04:13
To: Tomcat Users List
Subject: OT: Is it ok to close connection in finalize() ?
This is a bit off topic.
I am using connection pooling, and in my code, I open all the
connection I
need in an object constructor.
Then I will close this connection in finalize(), which (according to
what
I
read) will be executed during java garbage collect.
--- sample code --
public class GeneralConn {
private ConnCache connCache;
//open connection during object creation
public GeneralConn () {
try {
connCache = ConnCache.getInstance();
dbConn= connCache.getConnection(); //grab a connection
from
the connection pool
}catch (Exception e) {
System.out.println(Fail to open connection: +
e.getMessage());
}
}
//close when this object is destroyed
public void finalize () {
try{
dbConn.close();
dbConn = null;
}catch (Exception e) {
System.out.println(Fail to close connection: +
e.getMessage());
}
}
}
Would this be okay? is it guaranteed that finalize() will be executed
during
garbage collect??
Regards,
Rosdi bin Kasim.
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HTTP Status 503 - Servlet jsp is currently unavailable
hi, i found the following error when i use tomcat server: HTTP Status 503 - Servlet jsp is currently unavailable pls let me know the solution for this at earliest. thanks in advance ezhil.a
Re: HTTP Status 503 - Servlet jsp is currently unavailable
A.Ezhil: hi, i found the following error when i use tomcat server: HTTP Status 503 - Servlet jsp is currently unavailable pls let me know the solution for this at earliest. well. Just posting the error message, does not give me (i believe most of us) enough information, to help you with this matter. 1) Which tomcat version are you running a) standalone b) inside apache. 2) what os 3) What did you do, that caused this error message to appear ? Ciao Jens Skripczynski -- E-Mail: skripi(at)myrealbox(dot)com Gehe Grosse Dinge mit Gelassenheit an. [...] Und nehme kleine Dinge ernst. -- aus Ghost Dog - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
4.1.18 Re-deployment
I need help in figuring out why when I re-deploy an app with Tomcat 4.1.18 I get error 404 - Resource not available. The application works fine. Then when I recompile everything, put it in WEB-INF/classes, bundle it up into a war, and then try to use the application, I get the error. I compile the application with an ant job. I precompile the jsps into classes and create a web.xml file on the fly with all appropriate servlet/jsp mappings. If I restart Tomcat, things work fine. Otherwise there is somewhere in replacing the .class files or something that prevents TOmcat from accessing them. Any ideas would be appreciated. Thanks to anybody in advance, Tony __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: HTTP Status 503 - Servlet jsp is currently unavailable
thanks i am using standalone.. in linux 8.0 tomcat 4.0 while i am trying to open my application jsp page,it displayed that error... ezhil.a - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Web browser authenticates to Tomcat Server using Client SSL authentication
Hi , Have configured Tomcat to use SSL with client authentication set to true. Have imported client (which is the web browser IE) certificate to tomcat server keystore. But when I use IE to connect to Tomcat, it pops up a message box saying The Web site you want to view requests identification. Select the certificate to use when connecting. Problem is that there is no certificate displayed to select. Does anyone know how to solve this using the current setup ? regards, Hon Luen __ Do You Yahoo!? Promote your business from just $5 a month! http://sg.biztools.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: apache web server and Tomcat
Hi, to make Tomcat work with Apache is not really complicated, but need a certain amount of configuration. First install Apache and Tomcat (on the same computer or on two differents one). Then you'll need to install a connector. I actually use Apache 1.3.x with Tomcat 4.0.4 LE, and my connecter is mod_jk. For installation/configuration, this link is pretty usefull : http://www.ubeans.com/tomcat/ Contrary to what is written, it is not mandatory to compile all the stuff. You can find pre-compiled versions on the Web. But it depends of what OS your are using. Many other links may be helpfull. First time i've done the job, i used these ones : http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/jk/quickhowto.html http://jakarta.apache.org/tomcat/tomcat-4.0-doc/config/index.html http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/jk/workershowto.html and also this one : http://www.galatea.com/flashguides/index I know, it's a lot of work to read all this , but better to much documentation than not enough :-) Regards, Cédric - Original Message - From: christian morales [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, February 20, 2003 10:43 PM Subject: apache web server and Tomcat I am a peruvian student and i have a problem about apache web server and its relation whit tomcat. i have apache web server 1.3 and tomcat 4.0. what i have to do for a good understandig between this two. plus i need to now how i got to call my servlets from my web page. before i use to call like: localhost:8080 what i have to do. because i call whit server name too and nothing. please helpme i need this information. P.D.: sorry by my english _ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Performance Issue
Hi peter
Thanks for your reply.
I didnt get what u meant by testing it with bean
What I did was
recorded the time before I executed the Proc
recorded the time after I got result result set
recorded the time after commenting all the logic I had in
while(rs.next()){} loop.
I need all 6000 rows coz
on my page i am selecting one item in my combo-box and based on
value i select second combo box on same page gets populated.
Unfortunately there is one value which is creating problem
Any help will be of great help 2 me
On Fri, 21 Feb 2003 Peter Lin wrote :
If you're reading out 6K rows remotely, you're limited by
bandwidth. Especially if the webserver only has one ethernet card
and you're viewing the pages from another client. If you're
concerned about performance, I would suggest writing a simple
test bean to do the same exact query and time the elapse time to
get the data. Then you can subtract the transport time from the
total elapsed time.
Is there a reason you need all 6000 rows? That's a lot of data to
view in one shot. If you can break it into pages, or preload that
data, it should improve the response time.
peter
vikas yk [EMAIL PROTECTED] wrote:I am making call Oracle
Function on remote database .
The values are taken in result set.The numbers of records in
result set are aroung 6000.
when I do
while(rs.next())
{
//My logic
}
This takes aroung 5 min(300 sec) to get completed
Now I commented all my logic inside while loop of rs.next()
then also its taking around 4 min (250 sec) to just loop
through
records.
Is there any way I can minize my time to recurse through
records.
I am using oracle thin driver to make connection.
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cgi program htsearch not working in tomcat
hi, I am using htdig software in a linux system which has both apache and tomcat4.0.5. I have a cgi program htsearch located in my /usr/tomcat405/webapps/ROOT/cgi-bin. I have followed the instructions for configuring tomcat to run cgi ie. renaming $CATALINA_BASE/server/lib/servlets-cgi.renameto to $CATALINA_BASE/server/lib/servlets-cgi.jar and also uncommenting servlet and servlet mapping configuration in $CATALINA_BASE/conf/web.xml. When I run the program in the browser I get a page full of junk. The htdig program rundig had successfully indexed the required directory earlier. The htsearch program is supposed to return all the occurrences of a particular string. I am not getting any error as such but only a set of junk characters. Could somebody please help me? prem __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
newbe question; use a class.
Hi all,
i am a strupid newbe. and have simple question.
my asp have to use a class, but i do not know how ?
I give you my test files:
ASP:
-- test.asp / in the root directory of tomcat:
body
test-page:
hr
%
out.println(--br);
test t = new test();
out.println(--br);
%
/body
/html
and now the test.java:
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class test extends TagSupport {
public void test() throws Exception {
JspWriter out = pageContext.getOut();
out.print(ok. i am the class.);
}
}
---
i compailed it with standart java 1.4 javac test.java and put it in INF- and for
testing in other directorys that contain classes... or looks like it.
i run my asp in the tomcat env and get thi error:
cannot resolve symbol symbol : class test location: class
org.apache.jsp.test_jsp test t = new test();
i also tried some things with includions, but failed everytime. I think
it is the best do not tell you all the steps i done because all of it are
wrong.
Can you gurus please tell me how to make this little test working ?
Thank you very much.
Best Regards
Kris
Kris Wolff
Application Developer
dietzk. Interactive OHG
An der Schindhohl 7
D-65843 Sulzbach am Taunus
Fon +49 (0) 6196 4939-95
Fax +49 (0) 6196 758830
[EMAIL PROTECTED]
http://www.dietzk.de
Servlet filter and listerner best practices
Hi all, I am looking for some best practices for servlet filter (and servlet listener). These are quite new (servlet 2.3). I am using a servlet filter on some of my jsp page, but I would need a detail example of the best way to implement it. I am not sure how to catch exception in the servlet filter without hiding everything in the back on it. Also, I find it a bit limited to map the servlet on jsp and servlet using the web.xml. Is there a more precise way (with some reg ex?) to associate a filter with pages? If I had some good example of good patterns, using filter chain... I would probably apply it a better way. I would have the same question about listener servlet too. Thanks. Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
/manager /admin Tomcat 4.1.18
Are these different things? /manager and /admin I have Tomcat 4.0.4 working and I know it only has /manager but now after getting 4.1.18 working on my windows platform I can only get /admin working even though there is a manager subdirectory to the webapps directory. Andoni. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: /manager /admin Tomcat 4.1.18 - IGNORE THIS...
A quick look at server.xml reveals that the Memory realm is not enabled by default (it is commented out) in favour of the JNDI Realm. Andoni. - Original Message - From: Andoni [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 11:53 AM Subject: /manager /admin Tomcat 4.1.18 Are these different things? /manager and /admin I have Tomcat 4.0.4 working and I know it only has /manager but now after getting 4.1.18 working on my windows platform I can only get /admin working even though there is a manager subdirectory to the webapps directory. Andoni. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat and Apache
Apache is better at doing some things than Tomcat. For instance one I know of is serving static pages. Apache does that much better. Also if you use apache you get the benefit of things such as URL Rewriting and you get better Virtual host support than with Tomcat acting alone. I am sure there is a document somewhere on the web explaining all the benefits. I would recommend you do put Apache as your live interface to the world. Tomcat was designed as an application server not a web server and so if you are being pure about using the correct tool for every job then go with Apache Tomcat instead of just tomcat. Recently I will admit, later versions of Tomcat seem to be able to do a lot of what only apache used to be able to do but when you have your system up and running you'll find that it is then that you need something (at the most awkward time) that only apache can provide. Andoni. - Original Message - From: Etienne [EMAIL PROTECTED] To: 'Tomcat Users List' [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:01 PM Subject: Tomcat and Apache Hi, I have a simple question to ask. Why most of the people use Apache like the web server running in front of Tomcat? Would it be better to map tomcat on port 80? What is the plus value of having the apache web server in front? Is it only to have access to perl or php? Thanks Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
servlet/jsp/j2ee/pattern/ mailing list
It there a newsgroup of a good mailing list for servlet/jsp/j2ee/pattern/? I have search for some of them, I didn't find anything. Thanks. Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: servlet/jsp/j2ee/pattern/ mailing list
Have you tried the newsgroups? http://groups.google.com is a good place to look for groups but if you want to post regularly you are better getting Outlook Express (or some other client) and an address of a proper news server. Then you have news://comp.lang.java to post to. Also, although you are not Irish but it does not matter, you can use: http://www.ijug.org/ The Irish Java User's Group who have a very good web site discussion forum. Andoni. - Original Message - From: Etienne [EMAIL PROTECTED] To: 'Tomcat Users List' [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:17 PM Subject: servlet/jsp/j2ee/pattern/ mailing list It there a newsgroup of a good mailing list for servlet/jsp/j2ee/pattern/? I have search for some of them, I didn't find anything. Thanks. Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat admin
Hi, Last week, I have change the path of the tomcat admin from mysite/admin to mysite/admins, because I already had a custom administration section on mysite/admin/. Now I have tried to access the tomcat admin, but I have a security error. It seems that only admin/index.jsp can request the admin section. So, is there a better way to configure my tomcat/admin? By the way in which file can I set the path of the administration section? I forgot where I did it! ERROR: HTTP Status 400 - Invalid direct reference to form login page type Status report message Invalid direct reference to form login page description The request sent by the client was syntactically incorrect (Invalid direct reference to form login page). Thanks Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: ant install task
* Rob Abernethy IV [EMAIL PROTECTED] [0252 21:52]:
When I run 'ant install', I get the response OK - Installed application at
context path /foo. When I list the apps using ant list, I see that my app
is listed, but not started. When I try to access it via
http://localhost:8080/foo;, I get the error The requested resource is not
available. When I try to manually start this app from the manager gui, I get
this error FAIL - Application at context path /foo could not be started.
Any ideas?
I had the same trouble , possibly the install task likes an
expanded directory rather than a warfile?
If it doesn't work, see the attached build.xml - I knocked it
together over the past couple of days, but it works well for me.
Does the following (assuming you have the standard project layout
a la appdev guide:
build.xml
catalina-tasks.ent # just holds the taskdefs for the tasks you want.
src/
lib/
web/
)
deploys by copying warfiles to $appbase.dir under CATALINA_HOME,
so it sticks after reboots or if the build directory changes
names the warfile after the context.path it'll be deployed to
(not essential, it just simplified the buildfile)
undeploys by calling remove on the context, and physically deleting
the warfile from $appbase.dir to it stays undeployed after a restart
- you'll still have it in dist/ unless you do a clean
It has a few requirements:
1. catalina-ant.jar should be in the classpath
2. CATALINA_HOME should be correctly set in the environment
3.the webapp directory has unpackWARS=false set (not strictly a
requirement, but I found it saves a lot of hassle)
4. You have a file in your home directory called
'.tcdeploy.properties' with two lines:
user=managerusername
pass=managerpassword
Hmm, think that's it, there are other obvious targets, like list,stop,start
- see if it's any use.
--
How wonderful opera would be if there were no singers.
Rasputin :: Jack of All Trades - Master of Nuns
?xml version=1.0 ?
!DOCTYPE project [
!ENTITY catalina-tasks SYSTEM ./catalina-tasks.ent
]
project name=deployment test default=webapp
property environment=env /
property file=${user.home}/.tcdeploy.properties prefix=tc /
property file=build.properties /
!-- default properties if not specified elsewhere --
property name=servlet.jar
value=${env.CATALINA_HOME}/common/lib/servlet.jar /
property name=context.path value=deployment /
property name=webapp.name value=${context.path} /
property name=warfile.name location=dist/${webapp.name}.war /
property name=cat.server value=webapps.tenten /
property name=cat.appbase value=webapps /
property name=cat.deploydir
location=${env.CATALINA_HOME}/${cat.appbase} /
property name=cat.port value=8080 /
property name=autoload.delay value=30 /
property name=manager.url
value=http://${cat.server}:${cat.port}/manager; /
path id=compile.classpath
pathelement location=${servlet.jar} /
/path
!-- end of default properties --
!-- pull in the tomcat task definitions --
catalina-tasks;
target name=init description=create required directories
mkdir dir=build/classes /
mkdir dir=dist /
/target
target name=clean description=remove directories created by build
delete dir=build /
delete dir=dist /
/target
target name=compile depends=init
description=compile servlet classes
javac srcdir=src destdir=build/classes
classpathref=compile.classpath /
/target
target name=webapp depends=compile
description=generate WARfile
war destfile=${warfile.name}
webxml=web/WEB-INF/web.xml
fileset dir=web excludes=WEB-INF/web.xml/
classes dir=build/classes /
lib dir=lib /
/war
/target
!-- this task sets ${webapp.deployed} if, uh, it is --
target name=checkdeploy
condition property=webapp.deployed
http
url=http://${cat.server}:${cat.port}/${context.path};
/
/condition
/target
!-- catalina Ant tasks --
target name=list
description=list Contexts installed on ${cat.server}
list url=${manager.url}
username=${tc.user} password=${tc.pass}
/
/target
target name=appbase-copy depends=webapp
description=copy ${warfile.name} to ${cat.deploydir} [ needs shared disk ]
copy file=${warfile.name} todir=${cat.deploydir}
/
/target
target name=wait-for-tc
echo message=waiting
Re: parameter order
Actually, from my experience you should not rely on the order of the
parameters...There is no rule on that.
At 12:16 AM 2/21/2003 -0800, you wrote:
StringBuffer sb = new StringBuffer();
Enumeration en = req.getParameterNames();
for (; en.hasMoreElements() ;) {
String param = (String) en.nextElement();
String value = req.getParameter (param);
sb.append(param).append(:
).append(value).append(\n);
}
The order of the parameters is not clear - it is
neither alphabetical nor as specified in the html
form.
Is it that IE is ordering the parameters in such way
when POSTing the data? Anybody knows about this? This
is just out of curiousity, not really needed anywhere.
Thanks
rf
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RE: ant install task
Check your logs. There will be message in there saying why the app could not be loaded (my apps fail to load if I have made a mistake in my web.xml file) Regards Jim. -Original Message- From: Rob Abernethy IV [mailto:[EMAIL PROTECTED]] Sent: 20 February 2003 08:52 To: tomcat-user Subject: ant install task When I run 'ant install', I get the response OK - Installed application at context path /foo. When I list the apps using ant list, I see that my app is listed, but not started. When I try to access it via http://localhost:8080/foo;, I get the error The requested resource is not available. When I try to manually start this app from the manager gui, I get this error FAIL - Application at context path /foo could not be started. Any ideas? -- Robert Abernethy IV Dynamic Edge, Inc. 734.975.0460 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] PLEASE READ: The information contained in this email is confidential and intended for the named recipient(s) only. If you are not an intended recipient of this email you must not copy, distribute or take any further action in reliance on it and you should delete it and notify the sender immediately. Email is not a secure method of communication and Nomura International plc cannot accept responsibility for the accuracy or completeness of this message or any attachment(s). Please examine this email for virus infection, for which Nomura International plc accepts no responsibility. If verification of this email is sought then please request a hard copy. Unless otherwise stated any views or opinions presented are solely those of the author and do not represent those of Nomura International plc. This email is intended for informational purposes only and is not a solicitation or offer to buy or sell securities or related financial instruments. Nomura International plc is regulated by the Financial Services Authority and is a member of the London Stock Exchange. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat and Apache
Well said. One reason I front end with Apache is that I have to run other applications (IIS/ASP based, pppht!) and have several virtual hosts. Apache gives me the flexibility to handle literally anything thrown my way so far. I also feel like Apache is probably more secure to have exposed to the outside world. I don't feel that way about Tomcat. In fact, I'll only expose Tomcat apps via a connector, rather than HTTP. - Original Message - From: Andoni [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 7:13 AM Subject: Re: Tomcat and Apache Apache is better at doing some things than Tomcat. For instance one I know of is serving static pages. Apache does that much better. Also if you use apache you get the benefit of things such as URL Rewriting and you get better Virtual host support than with Tomcat acting alone. I am sure there is a document somewhere on the web explaining all the benefits. I would recommend you do put Apache as your live interface to the world. Tomcat was designed as an application server not a web server and so if you are being pure about using the correct tool for every job then go with Apache Tomcat instead of just tomcat. Recently I will admit, later versions of Tomcat seem to be able to do a lot of what only apache used to be able to do but when you have your system up and running you'll find that it is then that you need something (at the most awkward time) that only apache can provide. Andoni. - Original Message - From: Etienne [EMAIL PROTECTED] To: 'Tomcat Users List' [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:01 PM Subject: Tomcat and Apache Hi, I have a simple question to ask. Why most of the people use Apache like the web server running in front of Tomcat? Would it be better to map tomcat on port 80? What is the plus value of having the apache web server in front? Is it only to have access to perl or php? Thanks Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat and Apache
Agreed. It's probably OK, but I would rather keep Tomcat isolated from port 80, and I try to avoid running any services as root on port 80 if I can help it. In many cases, Tomcat alone is sufficient to serve whatever content there is to be served, but the additional flexibility and architecture benefits you get from using Apache + Tomcat are too many for me to ignore. John -Original Message- From: Ian Hunter [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 8:36 AM To: Tomcat Users List Subject: Re: Tomcat and Apache Well said. One reason I front end with Apache is that I have to run other applications (IIS/ASP based, pppht!) and have several virtual hosts. Apache gives me the flexibility to handle literally anything thrown my way so far. I also feel like Apache is probably more secure to have exposed to the outside world. I don't feel that way about Tomcat. In fact, I'll only expose Tomcat apps via a connector, rather than HTTP. - Original Message - From: Andoni [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 7:13 AM Subject: Re: Tomcat and Apache Apache is better at doing some things than Tomcat. For instance one I know of is serving static pages. Apache does that much better. Also if you use apache you get the benefit of things such as URL Rewriting and you get better Virtual host support than with Tomcat acting alone. I am sure there is a document somewhere on the web explaining all the benefits. I would recommend you do put Apache as your live interface to the world. Tomcat was designed as an application server not a web server and so if you are being pure about using the correct tool for every job then go with Apache Tomcat instead of just tomcat. Recently I will admit, later versions of Tomcat seem to be able to do a lot of what only apache used to be able to do but when you have your system up and running you'll find that it is then that you need something (at the most awkward time) that only apache can provide. Andoni. - Original Message - From: Etienne [EMAIL PROTECTED] To: 'Tomcat Users List' [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:01 PM Subject: Tomcat and Apache Hi, I have a simple question to ask. Why most of the people use Apache like the web server running in front of Tomcat? Would it be better to map tomcat on port 80? What is the plus value of having the apache web server in front? Is it only to have access to perl or php? Thanks Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Servlets and classpath problem
I've had similar problems and I could have sworn I saw someone give the advice that it's best to give each webapp it's own copy of the shared jars. I did that and the problems went away. I hate having duplicate files, but I guess if proper application segmentation is going on it's probably safer anyway. Just my two cents. - Original Message - From: John Rishea [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 8:49 AM Subject: Servlets and classpath problem Hi, I'm having a classpath problem with Tomcat 4.0.x on a Unix platform and was hoping someone could point me in the right direction. A servlet in one of my webapps uses external classes located outside common/lib or webapp/WEB-INF/classes. So I added the external class' location to the classpath in my .profile, assuming this would be all I needed to do. When I compile the servlet in my development directory, it compiles just fine. But when I place the servlet class in WEB-INF/classes directory and restart Tomcat, a ClassDefNotFound furball gets spit back at me for those external classes that (I thought) would be accessible via my classpath. I have root permissions so I know that isn't the issue. Is there something else I'm missing here? An entry in server.xml or something similar? I would really rather not copy those external classes into WEB-INF/classes (I have tried that, and then the servlet works just fine) but I don't know what to try next. Thanks for your help! __ John Rishea - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat and Virtual Sites in IIS
Hi. I have one question. I'm trying to configure Tomcat 4.1.12 to work with IIS 5.0. All of my settings work properly, but I can't configure IIS Virtual Sites to serve .jsp pages by means of Tomcat (I have configured site in IIS - this site name is sklep.zlp.pl, and I have configured virtual directory naming 'oponyzimowe' under this site; I have configured virtual directory naming 'jakarta' under this site as well). I think it is correct, because when I connect over Internet to site http://sklep.zlp.pl/examples I can see that my Tomcat work and I be able to execute examples servlets and .jsp pages. However, if I try to connect over the Internet to the site http://sklep.zlp.pl/oponyzimowe/examples I see the IIS Error 404 - File Not Found. How can I configure my Tomcat and IIS to work with IIS Virtual Sites? If You have some idea please contact me. Konrad Rusz e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
where can i servlet api specification?
servlet api specification is not included in java2 platform specification, but where i can find it? Thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: where can i servlet api specification?
http://java.sun.com/products/servlet/2.2/javadoc/ - Original Message - From: Xiongfei Wang [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 9:05 AM Subject: where can i servlet api specification? servlet api specification is not included in java2 platform specification, but where i can find it? Thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: where can i servlet api specification?
http://java.sun.com/products/servlet/download.html -Tim Xiongfei Wang wrote: servlet api specification is not included in java2 platform specification, but where i can find it? Thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Excel sheets
add the content type to /conf/web.xml for csv files. mime-mapping extensioncsv/extension mime-typeapplication/excel/mime-type /mime-mapping you will have to restart tomcat for this change. Charlie -Original Message- From: David Epstein [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 20, 2003 9:08 PM To: [EMAIL PROTECTED] Subject: Excel sheets I have a website that serves up files, which are often .csv files. When I run the site using IIS (ick), a user with Excel on their machine will see the .csv files automatically open in Excel. But when I use the Tomcat server, I can't get it to do the same. Is there an easy way to enable this functionality? Any help appreciated. David Epstein - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Howdy, This is a bit off topic. Then please mark it as such. See modified Subject for this message. I am using connection pooling, and in my code, I open all the connection I need in an object constructor. Then I will close this connection in finalize(), which (according to what I read) will be executed during java garbage collect. Bad practice. Connections are scarce resources and should be held for the minimum amount of time. Grab them from the pool, run whatever query you need, release them back to the pool. Make sure your release code handles exception and does not hold on to connections. Do not wait for the finalize() methods. They will be called during GC, yes, but it is difficult if not impossible to know exactly when GC will be called for your specific objects, even after no references are held to them. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Performance Issue
what I mean is this. write a simple bean to test how long it takes to get all 6K rows
outside of Tomcat. ie, a bean you can run from your IDE or command line.
Luckily, I already wrote one for the Tomcat performance book and included it in the
zip file. All you would have to do is change the JDBC properties, provide your sql
query in a text file and tell it how many iterations you want.
it will record the elapsed time to get the resultset. Once you know long that takes...
you can compare it to your page in Tomcat. It sounds like you're trying to dynamically
create all the drop downs, which sounds good in theory but is bad in practice. I'll
give you real example and see if it helps. I worked at a E-commerce site in the past
that had a similar problem. On the homepage, they wanted to show all the specials and
available items. this meant doing quite a few queries to dynamically build a page that
accurately reflected the inventory.
well, the end result of that approach is it ended up taking 6min+ to load the
homepage. After a lot of negotiating with marketing, and business people, it turns out
they really only need one part of the homepage dynamic (specials) and the rest could
be static. There really was no need to run 20 queries to build a page.
I don't know if your situation is similar, but if you really need the data to be
absolutely accurate, then you have no choice. I'm guessing only a small part of the
data changes every minute. In a situation where you have a lot of data that is
dynamic, it's better to create a application wide cache that uses events/messaging to
update the data in Tomcat. Since you're using Oracle, you can write a java trigger,
which uses JMS to publish a message. JMS will then notify all listening clients and
the client will go update itself. I'm guessing the first drop down doesn't have 6K
options, it's a good idea to break it into discrete pieces. If you make a persistent
webapp and have Tomcat load it at startup, you can prepopulate that data. hope that
helps.
peter
vikas yk [EMAIL PROTECTED] wrote:
Hi peter
Thanks for your reply.
I didnt get what u meant by testing it with bean
What I did was
recorded the time before I executed the Proc
recorded the time after I got result result set
recorded the time after commenting all the logic I had in
while(rs.next()){} loop.
I need all 6000 rows coz
on my page i am selecting one item in my combo-box and based on
value i select second combo box on same page gets populated.
Unfortunately there is one value which is creating problem
Any help will be of great help 2 me
On Fri, 21 Feb 2003 Peter Lin wrote :
If you're reading out 6K rows remotely, you're limited by
bandwidth. Especially if the webserver only has one ethernet card
and you're viewing the pages from another client. If you're
concerned about performance, I would suggest writing a simple
test bean to do the same exact query and time the elapse time to
get the data. Then you can subtract the transport time from the
total elapsed time.
Is there a reason you need all 6000 rows? That's a lot of data to
view in one shot. If you can break it into pages, or preload that
data, it should improve the response time.
peter
vikas yk wrote:I am making call Oracle
Function on remote database .
The values are taken in result set.The numbers of records in
result set are aroung 6000.
when I do
while(rs.next())
{
//My logic
}
This takes aroung 5 min(300 sec) to get completed
Now I commented all my logic inside while loop of rs.next()
then also its taking around 4 min (250 sec) to just loop
through
records.
Is there any way I can minize my time to recurse through
records.
I am using oracle thin driver to make connection.
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[OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Howdy,
You shouldn't put anything in your finalize() method, it's a bad
practice
because it can cause issues with the jvm's gc.
I strongly disagree with the above statement. Finalize methods have
their use -- that's why they're around. I agree with your specific
answer to this guy's connection handling question -- finalize() is not
the place for that.
But finalize() can be useful for many other things.
Consider the following class:
Class MyClass {
private Map aBigMap;
private Set aBigSet;
private List aBigList;
// This class does various
// things where the member structures
// can grow very very large and consume
// significant memory
/**
* Finalize: clear member
* structures.
*
* @throws Throwable
*/
protected void finalize() throws Throwable() {
aBigMap.clear();
aBigMap = null;
aBigSet.clear();
aBigSet = null;
aBigList.clear();
aBigList = null;
// Always call super.finalize()
// at the end of custom finalizers.
super.finalize();
}
}
// End of class: MyClass
The above custom finalizer will result in much more efficient memory
claiming by the garbage collector, almost independent of collector
implementation (parallel, mark and sweep, concurrent will all benefit
from this). Moreover, the finalize() method is the best place to do
this
sort of cleanup as you are assured the data won't be needed again.
Yoav Shapira
Millennium ChemInformatics
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Slightly Off Topic: Web Site Content
Hello, I have been doing web programming for quite some time but what I have yet to figure out is the best way to handle web site content. For example, if I want to create a web sire with a vast number of pages, I would like to have it easily maintained such that if a link changes in my navigation bar, the rest gets updated rather than picking through every page. What is the best way to do this? Do you guys use JSP pages and have the navigation or content stored in a database and then retrieved by the JSP? How about architecture? Are there any good books on this? Any help would be great. Sincerely, Kevin Kevin Andryc Web Systems Engineer MISER http://www.umass.edu/miser/ Phone: (413)-545-3460 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: where can i servlet api specification?
Obviouisly, if you want the spec for a different version, just change the 2.2. For instance: http://java.sun.com/products/servlet/2.3/javadoc/ - Original Message - From: Jake Robb [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 9:15 AM Subject: Re: where can i servlet api specification? http://java.sun.com/products/servlet/2.2/javadoc/ - Original Message - From: Xiongfei Wang [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 9:05 AM Subject: where can i servlet api specification? servlet api specification is not included in java2 platform specification, but where i can find it? Thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat and Apache
This is the story I was told. In old days, Tomcat was a JSP/Servlet Container - interpreting JSP/Servlet pages faster than it did for static html. So people chose Apache to load HTML pages and redirected requests of JSP/Servlet to Tomcat. Now Tomcat claims to be as fast as Apache in terms of interpreting HTMLs. Regards, PQ This Guy Thinks He Knows Everything This Guy Thinks He Knows What He Is Doing -Original Message- From: Etienne [mailto:[EMAIL PROTECTED]] Sent: February 21, 2003 7:01 AM To: 'Tomcat Users List' Subject: Tomcat and Apache Hi, I have a simple question to ask. Why most of the people use Apache like the web server running in front of Tomcat? Would it be better to map tomcat on port 80? What is the plus value of having the apache web server in front? Is it only to have access to perl or php? Thanks Etienne. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Connection Pooling
There are two options. 1. Tomcat JNDI: refer to Tomcat's JNDI datasource how-to 2. commons-dbcp + commons-pooling: refer to commons-dbcp and pooling API documentation Which one do you want to know? Regards, PQ This Guy Thinks He Knows Everything This Guy Thinks He Knows What He Is Doing -Original Message- From: Sebastiªo Carlos Santos [mailto:[EMAIL PROTECTED]] Sent: February 20, 2003 7:15 PM To: [EMAIL PROTECTED] Subject: Connection Pooling Somebody has some experience or example in the configuration and use of pool of connections with the commons-dbcp. I am a little lost and I don't know through where to begin. All information will be well arrival. I thank the help in advance __ E-mail Premium BOL Antivírus, anti-spam e até 100 MB de espaço. Assine já! http://email.bol.com.br/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Howdy, for you, you can call System.gc() to force it to garbage collect immediately. No. System.gc is a suggestion. The VM doesn't have to activate the collector upon this call. JDK 1.4 even includes a flag to explicitly ignore System.gc calls, so the server admin could use this flag anytime. True, but the garbage collector doesn't have to collect everything. There are very strict policies on what can and can't be collected and when. The simplest view is that if something has no references, it can (but not must) be finalized and collected. Consider the hypothetical case where the VM had many times the amount of memory it needed: would anything every be allocated? Depends on the collector implementation, and there are numerous implementations. if you call it directly you can't count on it collecting some or all of the available object. An object is an atomic unit for garbage collection. You can't garbage collect part of an object. If a class instance contains several member variables and the collector has determined the instance can be discarded, the collector has determined this after considering the member variables. Once discarded, all member variables are discarded in one atomic operation. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: parameter order
Howdy,
No rule exists, your design shouldn't rely on parameter order. If it
does, shuffle the enumeration into another structure, e.g. List, and
sort it before processing parameters.
Yoav Shapira
Millennium ChemInformatics
-Original Message-
From: rf [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 21, 2003 3:16 AM
To: [EMAIL PROTECTED]
Subject: parameter order
StringBuffer sb = new StringBuffer();
Enumeration en = req.getParameterNames();
for (; en.hasMoreElements() ;) {
String param = (String) en.nextElement();
String value = req.getParameter (param);
sb.append(param).append(:
).append(value).append(\n);
}
The order of the parameters is not clear - it is
neither alphabetical nor as specified in the html
form.
Is it that IE is ordering the parameters in such way
when POSTing the data? Anybody knows about this? This
is just out of curiousity, not really needed anywhere.
Thanks
rf
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[offtopic]Are JK2 developers M$ people?
I built apache and jk2 for my linux box. I have to admit it is slightly difficult to build and config. I still have an error after I start apache [error] mod_jk child init 1 0 - I am not even running mod_jk but mod_jk2! Yesterday I installed apache and jk2 on w2k box. Few minutes, I was done. I was wondering if those jk2 developers are hired by M$? :) Regards, PQ This Guy Thinks He Knows Everything This Guy Thinks He Knows What He Is Doing
Re: [OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Not sure I buy ...will result in much more efficient memory claiming At
the least, implementing a finalizer extends the lifetime of an object. It's up
to the VM to decide when that finalizer gets run, so the object might not become
finalized (ready for deallocation) for a significant amount of time. This seems
like a particularly bad idea for short-lived objects in an application that's
under heavy load. In general, if you really need to do some cleanup I'd say it's
preferable to make it explicit (e.g. add a clear method to MyClass).
Quoting Shapira, Yoav [EMAIL PROTECTED]:
Howdy,
You shouldn't put anything in your finalize() method, it's a bad
practice
because it can cause issues with the jvm's gc.
I strongly disagree with the above statement. Finalize methods have
their use -- that's why they're around. I agree with your specific
answer to this guy's connection handling question -- finalize() is not
the place for that.
But finalize() can be useful for many other things.
Consider the following class:
Class MyClass {
private Map aBigMap;
private Set aBigSet;
private List aBigList;
// This class does various
// things where the member structures
// can grow very very large and consume
// significant memory
/**
* Finalize: clear member
* structures.
*
* @throws Throwable
*/
protected void finalize() throws Throwable() {
aBigMap.clear();
aBigMap = null;
aBigSet.clear();
aBigSet = null;
aBigList.clear();
aBigList = null;
// Always call super.finalize()
// at the end of custom finalizers.
super.finalize();
}
}
// End of class: MyClass
The above custom finalizer will result in much more efficient memory
claiming by the garbage collector, almost independent of collector
implementation (parallel, mark and sweep, concurrent will all benefit
from this). Moreover, the finalize() method is the best place to do
this
sort of cleanup as you are assured the data won't be needed again.
Yoav Shapira
Millennium ChemInformatics
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whom it is addressed, and may not be saved, copied, printed, disclosed or
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immediately delete this e-mail from your computer system and notify the
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Re: setting up jndi jdbc tomcat and postgres
Hi Chris, where does this validationQuery goes?? on every connect?? Thanks .anil Chris Catton wrote: The tomcat documentation on jndi and datasources http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples -howto.html asks for feedback on setup with postgres. We finally got it working using java 1.4, tomcat 4.1.18 on linux, postgres 7.2.1 on linux with pg73jdbc2ee.jar. The instructions miss one crucial thing - on our system we were getting a datasource created, but on trying to get a connection from the datasource the system seemed to hang. A look at the postgres log showed repeated attempts to connect. Problem eventually solved by putting 'select 1;' in the validationQuery Seems the postgres driver wants the database to confirm the connection is valid before handing it back .. Hope this saves someone else some headscratching - pls stick it in the docs! C Chris Catton BioImage Database Development Manager Department of Zoology University of Oxford OX1 3PS Tel: +44 (0) 1865 281993 email: [EMAIL PROTECTED] web site: www.bioimage.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Slightly Off Topic: Web Site Content
What I do is that I make all my links point back to my servlet with something like serMyServlet?mode=about then I have the servlet process the mode parameter and find the about section. This then runs a method which returns a JSP to the browser. Architecture is always MVC, Classes doing processing and DB access fronted by a single servlet which spits out JSPs. Andoni. - Original Message - From: Kevin Andryc [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 2:31 PM Subject: Slightly Off Topic: Web Site Content Hello, I have been doing web programming for quite some time but what I have yet to figure out is the best way to handle web site content. For example, if I want to create a web sire with a vast number of pages, I would like to have it easily maintained such that if a link changes in my navigation bar, the rest gets updated rather than picking through every page. What is the best way to do this? Do you guys use JSP pages and have the navigation or content stored in a database and then retrieved by the JSP? How about architecture? Are there any good books on this? Any help would be great. Sincerely, Kevin Kevin Andryc Web Systems Engineer MISER http://www.umass.edu/miser/ Phone: (413)-545-3460 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Howdy, Not sure I buy ...will result in much more efficient memory claiming Then benchmark it ;) You will see a difference. For a short-lived object, the benefits may be negligible as you say. My scenario is for a long lived cache type object. In a full implementation, an explicit clear method would be present as well, and the finalize method would call the clear, but I wanted to put together the simplest, clearest example. the least, implementing a finalizer extends the lifetime of an object. True, but typically by very little and in this example, IMHO the benefits (~100MB of memory cleaned up a second faster for an increase of several microseconds in execution time of my benchmark run) far outweigh this cost. preferable to make it explicit (e.g. add a clear method to MyClass). An explicit clear method has its uses as well, and I nearly always include them in all implementations. But so does the finalizer() in ensuring the most efficient possible shutdown internally, without relying on the user to call a clear() method. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Slightly Off Topic: Web Site Content
You should take a look at the Jakarta Struts project. http://jakarta.apache.org/struts/ You define the urls for all your pages in config file and then struts handles making the links. Ian. -Original Message- From: Kevin Andryc [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 9:31 AM To: Tomcat Users List Subject: Slightly Off Topic: Web Site Content Hello, I have been doing web programming for quite some time but what I have yet to figure out is the best way to handle web site content. For example, if I want to create a web sire with a vast number of pages, I would like to have it easily maintained such that if a link changes in my navigation bar, the rest gets updated rather than picking through every page. What is the best way to do this? Do you guys use JSP pages and have the navigation or content stored in a database and then retrieved by the JSP? How about architecture? Are there any good books on this? Any help would be great. Sincerely, Kevin Kevin Andryc Web Systems Engineer MISER http://www.umass.edu/miser/ Phone: (413)-545-3460 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Slightly Off Topic: Web Site Content
You should also look at cocoon. http://xml.apache.org/cocoon/ Regards Jim. -Original Message- From: Zabel, Ian [mailto:[EMAIL PROTECTED]] Sent: 21 February 2003 15:27 To: 'Tomcat Users List' Subject: RE: Slightly Off Topic: Web Site Content You should take a look at the Jakarta Struts project. http://jakarta.apache.org/struts/ You define the urls for all your pages in config file and then struts handles making the links. Ian. -Original Message- From: Kevin Andryc [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 9:31 AM To: Tomcat Users List Subject: Slightly Off Topic: Web Site Content Hello, I have been doing web programming for quite some time but what I have yet to figure out is the best way to handle web site content. For example, if I want to create a web sire with a vast number of pages, I would like to have it easily maintained such that if a link changes in my navigation bar, the rest gets updated rather than picking through every page. What is the best way to do this? Do you guys use JSP pages and have the navigation or content stored in a database and then retrieved by the JSP? How about architecture? Are there any good books on this? Any help would be great. Sincerely, Kevin Kevin Andryc Web Systems Engineer MISER http://www.umass.edu/miser/ Phone: (413)-545-3460 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] PLEASE READ: The information contained in this email is confidential and intended for the named recipient(s) only. If you are not an intended recipient of this email you must not copy, distribute or take any further action in reliance on it and you should delete it and notify the sender immediately. Email is not a secure method of communication and Nomura International plc cannot accept responsibility for the accuracy or completeness of this message or any attachment(s). Please examine this email for virus infection, for which Nomura International plc accepts no responsibility. If verification of this email is sought then please request a hard copy. Unless otherwise stated any views or opinions presented are solely those of the author and do not represent those of Nomura International plc. This email is intended for informational purposes only and is not a solicitation or offer to buy or sell securities or related financial instruments. Nomura International plc is regulated by the Financial Services Authority and is a member of the London Stock Exchange. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Form based security and Remember Me
Here's how I've done it -
First of all, I don't use j_security_check as my action, but rather
auth/ which maps to a LoginServlet. That servlet does some other things,
but here's the relevant code. The StringUtil.encodeString(password) method
changes to cookie to be base64 encrypted. Not a very good encryption, but
better than nothing.
LoginServlet.java
=
String username = request.getParameter(j_username).toLowerCase();
String password = request.getParameter(j_password);
if (request.getParameter(rememberMe) != null) {
response =
RequestUtil.setCookie(response, rememberMe, true, false);
response =
RequestUtil.setCookie(response, password,
StringUtil.encodeString(password),
false);
}
String req =
j_security_check?j_username= + RequestUtils.encodeURL(username)
+ j_password= + RequestUtils.encodeURL(password);
response.sendRedirect(response.encodeRedirectURL(req));
Then I have a filter mapped to /* and it has the following code:
Cookie rememberMe = RequestUtil.getCookie(request, rememberMe);
Cookie passCookie = RequestUtil.getCookie(request, password);
String password =
(passCookie != null)
? URLDecoder.decode(passCookie.getValue(), UTF-8) : null;
// form-error-page/login.jsp?error=true/form-error-page
boolean authFailed =
StringUtils.equals(request.getParameter(error), true);
// check to see if the user is logging out, if so, remove the
// rememberMe cookie and password Cookie
if ((request.getRequestURL().indexOf(logout) != -1) || authFailed) {
if (log.isDebugEnabled()) {
log.debug(deleting rememberMe-related cookies);
}
response =
RequestUtil.deleteCookie(response,
RequestUtil.getCookie(request,
rememberMe));
response = RequestUtil.deleteCookie(response, passCookie);
}
if ((request.getRequestURL().indexOf(login) != -1) !authFailed) {
// Check to see if we should automatically login the user
// container is routing user to login page, check for remember me cookie
Cookie userCookie = RequestUtil.getCookie(request, username);
String username =
(passCookie != null)
? URLDecoder.decode(userCookie.getValue(), UTF-8) : null;
if ((rememberMe != null) (password != null)) {
// authenticate user without displaying login page
String route =
j_security_check?j_username= + username
+ j_password= + StringUtil.decodeString(password);
if (log.isDebugEnabled()) {
log.debug(I remember you ' + username
+ ', attempting authentication...);
}
response.sendRedirect(response.encodeRedirectURL(route));
return;
}
}
chain.doFilter(req, resp);
This has been working great for me, but I've only tested it on Tomcat.
HTH,
Matt
-Original Message-
From: John Trollinger [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 20, 2003 1:12 PM
To: [EMAIL PROTECTED]
Subject: Form based security and Remember Me
I seached the archive and only saw one message pertaining to this.
Is anyone doing this at all? And if so how?
Thanks,
John
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RE: Slightly Off Topic: Web Site Content
Or even Forrest: http://xml.apache.org/forrest/index.html John -Original Message- From: Collins, Jim [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 10:32 AM To: 'Tomcat Users List' Subject: RE: Slightly Off Topic: Web Site Content You should also look at cocoon. http://xml.apache.org/cocoon/ Regards Jim. -Original Message- From: Zabel, Ian [mailto:[EMAIL PROTECTED]] Sent: 21 February 2003 15:27 To: 'Tomcat Users List' Subject: RE: Slightly Off Topic: Web Site Content You should take a look at the Jakarta Struts project. http://jakarta.apache.org/struts/ You define the urls for all your pages in config file and then struts handles making the links. Ian. -Original Message- From: Kevin Andryc [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 9:31 AM To: Tomcat Users List Subject: Slightly Off Topic: Web Site Content Hello, I have been doing web programming for quite some time but what I have yet to figure out is the best way to handle web site content. For example, if I want to create a web sire with a vast number of pages, I would like to have it easily maintained such that if a link changes in my navigation bar, the rest gets updated rather than picking through every page. What is the best way to do this? Do you guys use JSP pages and have the navigation or content stored in a database and then retrieved by the JSP? How about architecture? Are there any good books on this? Any help would be great. Sincerely, Kevin Kevin Andryc Web Systems Engineer MISER http://www.umass.edu/miser/ Phone: (413)-545-3460 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] PLEASE READ: The information contained in this email is confidential and intended for the named recipient(s) only. If you are not an intended recipient of this email you must not copy, distribute or take any further action in reliance on it and you should delete it and notify the sender immediately. Email is not a secure method of communication and Nomura International plc cannot accept responsibility for the accuracy or completeness of this message or any attachment(s). Please examine this email for virus infection, for which Nomura International plc accepts no responsibility. If verification of this email is sought then please request a hard copy. Unless otherwise stated any views or opinions presented are solely those of the author and do not represent those of Nomura International plc. This email is intended for informational purposes only and is not a solicitation or offer to buy or sell securities or related financial instruments. Nomura International plc is regulated by the Financial Services Authority and is a member of the London Stock Exchange. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat 4.1.18-LE re-writes tomcat-users.xml file; why?
Hi, I recently upgraded from tomcat 4.1.12-LE to 4.1.18-LE. I use the simple Memory Realm for user authentication. I have been maintaining the tomcat-users.xml file by hand, including comments etc. It appears that some portion of 4.1.18 reads and then rewrites the tomcat-users.xml file because all of my comments etc. disappear shortly after the server starts and long before I make any access to the server. I am not using the manager webapp or anything else, although the manager webapp is starting. Is the behavior with respect to the tomcat-users.xml file configurable? I would really prefer that it not be changed by some program. Please advise, thanks. chris... p.s. would you please cc me on any reply so I see it soonest? Thanks. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: 403 Forbidden - you don't have permission ... I'M STUCK!!
Bill, thanks for looking over the files... I checked the directory and everyone is set for file permissions. If they were not set wouldn't http://localhost:8080/examples be blocked? It accesses the same folder D:/Apache/Tomcat4.1/webapps/examples as http://localhost/examples . Isn't that correct??? The folder D:/Apache/Tomcat4.1/CTG/examples has the same permissions as D:/Apache/Tomcat4.1/webapps/examples. Any other ideas? What I need to access is the directory listing under D:/Apache/Tomcat4.1/CTG/temp... It is one of those things that has to be something so obvious, when (IF) I find it I'll probably screem! :) Until then... aaargghh... - Original Message - From: Bill Barker [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:24 AM Subject: Re: 403 Forbidden - you don't have permission ... any ideas? At a very quick glance, it looks like it should be Ok. My first guess would be tree permissions. Apache will tree-walk, so it needs at least 'rx' permissions to all directories upto and including D:/Apache/Tomcat4.1/CTG/examples. 403 is also Apache's normal response when you have disabled directory listings, but I didn't see that in my quick glance (quick := I very well may have overlooked something :). tomcat guy [EMAIL PROTECTED] wrote in message 001301c2d91d$b63a0590$6601a8c0@ctg">news:001301c2d91d$b63a0590$6601a8c0@ctg... If anyone can help, here is my problem: I can go to http://localhost:8080/examples and I get the directory listing images/ jsp/ servlets/. BUT when I go to http://localhost/examples I get the forbidden error?!? Any ideas? The permissions are all good. I go to http://localhost/examples/jps and it works? The JSP's work along with the servlets. I recently reinstalled my apache server. I cannot remember this not working. What did I forget!!! (besides my documentation, of course). Basically I need to setup a directory path to http://localhost/examples/temp or http://localhost/temp to my virtualHost http://ctg.com/examples nothing is working!!! I have attached a copy of my httpd.conf server.xml. If anyone would be able to give it a quick glance OR send a copy of your config files that would be great! I am using: Apache2.0.43 Tomcat4.1.18 mod_jk Win2k -- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: 403 Forbidden - you don't have permission ... any ideas?
Could it possibly be with the connector? I'm thinking that could be a possibility since I can see the directory http://localhost:8080/examples but I get the 403 err with http://localhost/examples... Keep in mind http://localhost/examples/jsp gives no error, shows my jsp samples... - Original Message - From: Bill Barker [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:24 AM Subject: Re: 403 Forbidden - you don't have permission ... any ideas? At a very quick glance, it looks like it should be Ok. My first guess would be tree permissions. Apache will tree-walk, so it needs at least 'rx' permissions to all directories upto and including D:/Apache/Tomcat4.1/CTG/examples. 403 is also Apache's normal response when you have disabled directory listings, but I didn't see that in my quick glance (quick := I very well may have overlooked something :). tomcat guy [EMAIL PROTECTED] wrote in message 001301c2d91d$b63a0590$6601a8c0@ctg">news:001301c2d91d$b63a0590$6601a8c0@ctg... If anyone can help, here is my problem: I can go to http://localhost:8080/examples and I get the directory listing images/ jsp/ servlets/. BUT when I go to http://localhost/examples I get the forbidden error?!? Any ideas? The permissions are all good. I go to http://localhost/examples/jps and it works? The JSP's work along with the servlets. I recently reinstalled my apache server. I cannot remember this not working. What did I forget!!! (besides my documentation, of course). Basically I need to setup a directory path to http://localhost/examples/temp or http://localhost/temp to my virtualHost http://ctg.com/examples nothing is working!!! I have attached a copy of my httpd.conf server.xml. If anyone would be able to give it a quick glance OR send a copy of your config files that would be great! I am using: Apache2.0.43 Tomcat4.1.18 mod_jk Win2k -- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re-post: Tomcat 4.1.18 as Win2k/XP Service
We have Tomcat and Oracle (both as services) running on a single box. Our application uses poolman and works fine when starting Tomcat on a manual basis, but on a re-boot Oracle is not ready by the time the application attempts to make its connections. The resulting error leaves Tomcat/application in an unrecoverable state. What is the easiest way to delay the Tomcat startup (by say a minute) on re-boot. The Tomcat service uses 'tomcat.exe' which I think is created on the install. We thought of adding a hacked delay to startup.bat but changing the service to use startup.bat didn't seem to work at all. (Win2k service dependencies don't work in the sense that that the Tomcat service only depends on the starting of the Oracle service, and does not wait until Oracle is fully initialised) Any ideas ? Daniel Haynes Rule Financial 30 Cannon Street London EC4M 6YN - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: 403 Forbidden - you don't have permission ... I'M STUCK!!
Sorry - didn't get your attachments - but think the problem is in httpd.conf Is your listen directive set? # # Listen: Allows you to bind Apache to specific IP addresses and/or # ports, in addition to the default. See also the VirtualHost # directive. # # Change this to Listen on specific IP addresses as shown below to # prevent Apache from glomming onto all bound IP addresses (0.0.0.0) # Listen 127.0.0.1:8080 ...in other words its the port that could be causing the problem. HTH -Original Message- From: tomcat guy [mailto:[EMAIL PROTECTED]] Sent: Freitag, 21. Februar 2003 16:48 To: Tomcat Users List Subject: Re: 403 Forbidden - you don't have permission ... I'M STUCK!! Bill, thanks for looking over the files... I checked the directory and everyone is set for file permissions. If they were not set wouldn't http://localhost:8080/examples be blocked? It accesses the same folder D:/Apache/Tomcat4.1/webapps/examples as http://localhost/examples . Isn't that correct??? The folder D:/Apache/Tomcat4.1/CTG/examples has the same permissions as D:/Apache/Tomcat4.1/webapps/examples. Any other ideas? What I need to access is the directory listing under D:/Apache/Tomcat4.1/CTG/temp... It is one of those things that has to be something so obvious, when (IF) I find it I'll probably screem! :) Until then... aaargghh... - Original Message - From: Bill Barker [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:24 AM Subject: Re: 403 Forbidden - you don't have permission ... any ideas? At a very quick glance, it looks like it should be Ok. My first guess would be tree permissions. Apache will tree-walk, so it needs at least 'rx' permissions to all directories upto and including D:/Apache/Tomcat4.1/CTG/examples. 403 is also Apache's normal response when you have disabled directory listings, but I didn't see that in my quick glance (quick := I very well may have overlooked something :). tomcat guy [EMAIL PROTECTED] wrote in message 001301c2d91d$b63a0590$6601a8c0@ctg">news:001301c2d91d$b63a0590$6601a8c0@ctg... If anyone can help, here is my problem: I can go to http://localhost:8080/examples and I get the directory listing images/ jsp/ servlets/. BUT when I go to http://localhost/examples I get the forbidden error?!? Any ideas? The permissions are all good. I go to http://localhost/examples/jps and it works? The JSP's work along with the servlets. I recently reinstalled my apache server. I cannot remember this not working. What did I forget!!! (besides my documentation, of course). Basically I need to setup a directory path to http://localhost/examples/temp or http://localhost/temp to my virtualHost http://ctg.com/examples nothing is working!!! I have attached a copy of my httpd.conf server.xml. If anyone would be able to give it a quick glance OR send a copy of your config files that would be great! I am using: Apache2.0.43 Tomcat4.1.18 mod_jk Win2k -- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Quoting Shapira, Yoav [EMAIL PROTECTED]: Howdy, Not sure I buy ...will result in much more efficient memory claiming Then benchmark it ;) You will see a difference. Someone did, and you're right, there was a difference ;-): http://java.sun.com/docs/books/performance/1st_edition/html/JPAppGC.fm.html#997455 The point is really that it depends. My issues are with the word will (as in it's always gonna be that way) and the implication that finalizers should be part of your normal implementation. I'd say finalilzers are specifically for abnormal situations where automatic memory management is insufficient for cleaning up an object's resources. And even then, you're still better off doing an explicit cleanup. For a short-lived object, the benefits may be negligible as you say. My scenario is for a long lived cache type object. In a full implementation, an explicit clear method would be present as well, and the finalize method would call the clear, but I wanted to put together the simplest, clearest example. Sure, I understand the example has to be bite-sized. But even for a long-lived cache object, if it's not reachable I want it gone as quickly as possible, not when the VM gets a chance to run its finalizer. Yes, on average, it may not be an issue for the VM to do that, but I don't want to get bit by that ~100MB cache hanging around at the wrong time. the least, implementing a finalizer extends the lifetime of an object. True, but typically by very little and in this example, IMHO the benefits (~100MB of memory cleaned up a second faster for an increase of several microseconds in execution time of my benchmark run) far outweigh this cost. Well, I guess in a typical situation that one second wouldn't make a difference either. But under heavy load you can't really make any claims about when the finalilzer gets run because it's unspecified. preferable to make it explicit (e.g. add a clear method to MyClass). An explicit clear method has its uses as well, and I nearly always include them in all implementations. But so does the finalizer() in ensuring the most efficient possible shutdown internally, without relying on the user to call a clear() method. That just seems like too much of a generalization. In fact, it's possible that finalizers may never be run. I'm much happier with a system that behaves predictably and relying on finalizers is a step in the opposite direction. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Kris Schneider mailto:[EMAIL PROTECTED] D.O.Tech http://www.dotech.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat 4.1.18-LE re-writes tomcat-users.xml file; why?
Howdy, I recently upgraded from tomcat 4.1.12-LE to 4.1.18-LE. I use the simple Memory Realm for user authentication. I have been maintaining the tomcat-users.xml file by hand, including comments etc. It appears that some portion of 4.1.18 reads and then rewrites the tomcat-users.xml That portion is org.apache.catalina.users.MemoryUserDatabase. This class reads and then writes the file. I believe the reason the file needs to be re-written is that users may be added via the admin webapp. I may be wrong on this. What the class does is read the file into memory, not retaining its XML content but rather converting it into maps of groups (org.apache.catalina.Group), roles (org.apache.catalina.Role), and users (org.apache.catalina.User). The public close() method persists the in-memory representation of this structures back into the XML file. So obviously, comments are not saved. file because all of my comments etc. disappear shortly after the server starts and long before I make any access to the server. This is unfortunate. I'm not sure what the best solution is in this case. For now, perhaps you could move the content of these comments out of the tomcat-users.xml file itself and into a separate document regarding tomcat user setup for your company/webapp/whatever. Is the behavior with respect to the tomcat-users.xml file configurable? I don't think so. I would really prefer that it not be changed by some program. It's not some program. This is a tomcat-owned configuration file and tomcat changes this file. p.s. would you please cc me on any reply so I see it soonest? Thanks. OK. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Re-post: Tomcat 4.1.18 as Win2k/XP Service
I'm no developer, but I think perhaps you want to take a look at a LifecycleListener. Something along the lines of when this Context starts, check to see if Oracle is up. Block until it is, when it is, continue to application initialization. http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/context.html John -Original Message- From: Daniel Haynes [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 10:50 AM To: Tomcat User List (E-mail) Subject: Re-post: Tomcat 4.1.18 as Win2k/XP Service We have Tomcat and Oracle (both as services) running on a single box. Our application uses poolman and works fine when starting Tomcat on a manual basis, but on a re-boot Oracle is not ready by the time the application attempts to make its connections. The resulting error leaves Tomcat/application in an unrecoverable state. What is the easiest way to delay the Tomcat startup (by say a minute) on re-boot. The Tomcat service uses 'tomcat.exe' which I think is created on the install. We thought of adding a hacked delay to startup.bat but changing the service to use startup.bat didn't seem to work at all. (Win2k service dependencies don't work in the sense that that the Tomcat service only depends on the starting of the Oracle service, and does not wait until Oracle is fully initialised) Any ideas ? Daniel Haynes Rule Financial 30 Cannon Street London EC4M 6YN - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Howdy, http://java.sun.com/docs/books/performance/1st_edition/html/JPAppGC.fm. html #997455 That's a good link. Thanks for posting it. It also makes the point that In addition to lengthening object lifetimes, finalize methods can increase object size. For example, some JVMs, such as the classic JVM implementation, add an extra hidden field to objects with finalize methods so that they can be held in a linked list finalization queue. I neglected to make this point, and it's true. These objects even show up neatly in my OptimizeIt and JProbe windows as java.lang.ref.Finalizer (BTW can anyone find the JavaDoc for that class?) instances. The point is really that it depends. My issues are with the word will (as I completely agree. part of your normal implementation. I'd say finalilzers are specifically for abnormal situations where automatic memory management is insufficient for cleaning up an object's resources. And even then, you're still better off doing an explicit cleanup. I partially agree. But that's an idealistic view which is not always possible. cache object, if it's not reachable I want it gone as quickly as possible, not when the VM gets a chance to run its finalizer. The VM will run its finalizer always before the object is gone. Whether it's the default Object.finalize() or your custom one, some finalizer will always be run anyways. Of course, Object.finalize() is likely to be quicker than any other implementation, so it works best for your specific requirement above. I've been in several situations where efficient memory management is critical enough that this clear on finalization is a common requirement. That just seems like too much of a generalization. In fact, it's possible that finalizers may never be run. I'm much happier with a system that behaves predictably and relying on finalizers is a step in the opposite direction. I don't think finalizers reduce predictability at all. How is it possible they are never run for something that is going be GC'ed?? Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: 403 Forbidden - you don't have permission ... I'M STUCK!!
1) Yes each VH can have a Directory directive (as far as I can remember :-)) 2) I have the Tomcat Welcome page as the default page on our installation - in mod_jk.conf I added the lines: JKMount / ajp13 JKMount /* ajp13 in addition to my normal webapp mounts. Apache now completely ignores it's own default directory and sends all blank requests to Tomcats ROOT context. Plus all the links to Manager, Admin etc work! Ciao -Original Message- From: tomcat guy [mailto:[EMAIL PROTECTED]] Sent: Freitag, 21. Februar 2003 17:13 To: Tomcat Users List Subject: Re: 403 Forbidden - you don't have permission ... I'M STUCK!! I just noticed that! Like I was saying it had to be something simple. The default Directory / was not set. I'll do another ggghhh One word - documentation. Got another quick question now. Can you have a Directory setting for each virtualHost? Ok 2 questions. The default DocumentRoot is: DocumentRoot D:/Apache/Apache2/htdocs everything (all files) are being served under D:/Apache/Tomcat4.1/webapps Should the DocumentRoot be changed to this? Or does the connector handle this D:/Apache/Apache2/htdocs is ok??? - Original Message - From: Roberts, Eric [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 9:50 AM Subject: RE: 403 Forbidden - you don't have permission ... I'M STUCK!! Sorry - didn't get your attachments - but think the problem is in httpd.conf Is your listen directive set? # # Listen: Allows you to bind Apache to specific IP addresses and/or # ports, in addition to the default. See also the VirtualHost # directive. # # Change this to Listen on specific IP addresses as shown below to # prevent Apache from glomming onto all bound IP addresses (0.0.0.0) # Listen 127.0.0.1:8080 ...in other words its the port that could be causing the problem. HTH -Original Message- From: tomcat guy [mailto:[EMAIL PROTECTED]] Sent: Freitag, 21. Februar 2003 16:48 To: Tomcat Users List Subject: Re: 403 Forbidden - you don't have permission ... I'M STUCK!! Bill, thanks for looking over the files... I checked the directory and everyone is set for file permissions. If they were not set wouldn't http://localhost:8080/examples be blocked? It accesses the same folder D:/Apache/Tomcat4.1/webapps/examples as http://localhost/examples . Isn't that correct??? The folder D:/Apache/Tomcat4.1/CTG/examples has the same permissions as D:/Apache/Tomcat4.1/webapps/examples. Any other ideas? What I need to access is the directory listing under D:/Apache/Tomcat4.1/CTG/temp... It is one of those things that has to be something so obvious, when (IF) I find it I'll probably screem! :) Until then... aaargghh... - Original Message - From: Bill Barker [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:24 AM Subject: Re: 403 Forbidden - you don't have permission ... any ideas? At a very quick glance, it looks like it should be Ok. My first guess would be tree permissions. Apache will tree-walk, so it needs at least 'rx' permissions to all directories upto and including D:/Apache/Tomcat4.1/CTG/examples. 403 is also Apache's normal response when you have disabled directory listings, but I didn't see that in my quick glance (quick := I very well may have overlooked something :). tomcat guy [EMAIL PROTECTED] wrote in message 001301c2d91d$b63a0590$6601a8c0@ctg">news:001301c2d91d$b63a0590$6601a8c0@ctg... If anyone can help, here is my problem: I can go to http://localhost:8080/examples and I get the directory listing images/ jsp/ servlets/. BUT when I go to http://localhost/examples I get the forbidden error?!? Any ideas? The permissions are all good. I go to http://localhost/examples/jps and it works? The JSP's work along with the servlets. I recently reinstalled my apache server. I cannot remember this not working. What did I forget!!! (besides my documentation, of course). Basically I need to setup a directory path to http://localhost/examples/temp or http://localhost/temp to my virtualHost http://ctg.com/examples nothing is working!!! I have attached a copy of my httpd.conf server.xml. If anyone would be able to give it a quick glance OR send a copy of your config files that would be great! I am using: Apache2.0.43 Tomcat4.1.18 mod_jk Win2k -- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RequestDispatcher and WEB-INF
rf wrote: It is strange that RequestDispatcher considers only jsp and html, why not other extns like jpg/gif or why not just any other resource - is this because of any security concern? I don't think it's security, but I looked at the Servlet spec (page 55) and couldn't find a specific reason. It looks like it was originally intended that a RequestDispatcher should represent only a servlet, and that you could forward to that servlet to continue processing the request, but there is also the include method of RequestDispatcher for when you wish to output /some/ data and then allow the included resource to continue processing. Perhaps the very fact that HTML files are allowed to be the target resources of RequestDispatchers at all was added on at some later point for developer convenience. Certainly there is more [programmatic] flexibility if you are forwarding to or including a servlet (or JSP, which is really a servlet). Erik - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat 4.1.18-LE re-writes tomcat-users.xml file; why?
Yoav is correct - you can create users in the Admin webapp. ...and you could use the Fullname field for your comments. HTH -Original Message- From: Shapira, Yoav [mailto:[EMAIL PROTECTED]] Sent: Freitag, 21. Februar 2003 16:56 To: Tomcat Users List Cc: [EMAIL PROTECTED] Subject: RE: Tomcat 4.1.18-LE re-writes tomcat-users.xml file; why? Howdy, I recently upgraded from tomcat 4.1.12-LE to 4.1.18-LE. I use the simple Memory Realm for user authentication. I have been maintaining the tomcat-users.xml file by hand, including comments etc. It appears that some portion of 4.1.18 reads and then rewrites the tomcat-users.xml That portion is org.apache.catalina.users.MemoryUserDatabase. This class reads and then writes the file. I believe the reason the file needs to be re-written is that users may be added via the admin webapp. I may be wrong on this. What the class does is read the file into memory, not retaining its XML content but rather converting it into maps of groups (org.apache.catalina.Group), roles (org.apache.catalina.Role), and users (org.apache.catalina.User). The public close() method persists the in-memory representation of this structures back into the XML file. So obviously, comments are not saved. file because all of my comments etc. disappear shortly after the server starts and long before I make any access to the server. This is unfortunate. I'm not sure what the best solution is in this case. For now, perhaps you could move the content of these comments out of the tomcat-users.xml file itself and into a separate document regarding tomcat user setup for your company/webapp/whatever. Is the behavior with respect to the tomcat-users.xml file configurable? I don't think so. I would really prefer that it not be changed by some program. It's not some program. This is a tomcat-owned configuration file and tomcat changes this file. p.s. would you please cc me on any reply so I see it soonest? Thanks. OK. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat 4.1.18 Internal Server Error
Hello! I get this error message and don#t know what the problem could be: snip java.security.AccessControlException: access denied (java.lang.RuntimePermission getClassLoader) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:270) at java.security.AccessController.checkPermission(AccessController.java:401) at java.lang.SecurityManager.checkPermission(SecurityManager.java:542) at java.lang.ClassLoader.getParent(ClassLoader.java:701) at org.apache.catalina.loader.WebappClassLoader.toString(WebappClassLoader.java:888) at java.lang.String.valueOf(String.java:2177) at java.lang.StringBuffer.append(StringBuffer.java:361) /snip The error occurs while I try to create a DOMParser. Is this a problem due to some configuration problem?? Any help is greatly appreciated I use Tomcat 4.1.18 on Debian/GnuLinux. JDK1.4. -- Mit freundlichen Gruessen/best regards Mark Baumann - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Mapping .jsp to controller servlet
Yesterday I noticed that an application that has been running successfully for about a year has a problem I've never noticed before. It's set up so that all access to web-app is through a login method that calls a login.jsp page from a controller servlet. So all requests to jsp pages get redirected to the login page. But yesterday I noticed that if I included .jsp in the address the controller servlet and the login.jsp are completely bypassed and access is given to the jsp page. I've also recently changed the login method to use JCIFS and authenticate against NT domain controller rather than a mySQL database and I suppose it's possible that the problem is actually there. In investigating this though I've read that .jsp pages are public, which indicates to me that they CAN be accessed directly. Can anyone tell me if this is true. In other words is mapping .jsp to a servlet fruitless? If not then I guess I can conclude that it's the login method that is failing not the mapping. I've included this in my web.xml to force redirection of all .jsp page to the servlet but it seems to have no effect. The relevant portion of web.xml, mapped to servlet named 'sysadmin' further up in web.xml. servlet-mapping servlet-name sysadmin /servlet-name url-pattern .*jsp /url-pattern /servlet-mapping Thanks for any info, Ken - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat 4.1.18 Internal Server Error
Howdy, Are you running tomcat with a security manager, and if so what does your policy file look like? Yoav Shapira Millennium ChemInformatics -Original Message- From: Mark Baumann [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 11:27 AM To: Tomcat Users List Subject: Tomcat 4.1.18 Internal Server Error Hello! I get this error message and don#t know what the problem could be: snip java.security.AccessControlException: access denied (java.lang.RuntimePermission getClassLoader) at java.security.AccessControlContext.checkPermission(AccessControlContext .jav a:270) at java.security.AccessController.checkPermission(AccessController.java:40 1) at java.lang.SecurityManager.checkPermission(SecurityManager.java:542) at java.lang.ClassLoader.getParent(ClassLoader.java:701) at org.apache.catalina.loader.WebappClassLoader.toString(WebappClassLoader .jav a:888) at java.lang.String.valueOf(String.java:2177) at java.lang.StringBuffer.append(StringBuffer.java:361) /snip The error occurs while I try to create a DOMParser. Is this a problem due to some configuration problem?? Any help is greatly appreciated I use Tomcat 4.1.18 on Debian/GnuLinux. JDK1.4. -- Mit freundlichen Gruessen/best regards Mark Baumann - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mapping .jsp to controller servlet
I may not be entirely clear on what you're saying, but if you're saying that no one should directly be able to request your JSPs and instead they should only access the contents of your site by requesting Servlet resources (which then forward to JSPs), perhaps it would be worth moving the JSPs into WEB-INF where they cannot be touched? AFAIK, you can still have the servlets dispatcher.forward() to the JSPs if you do this. Erik Januski, Ken wrote: Yesterday I noticed that an application that has been running successfully for about a year has a problem I've never noticed before. It's set up so that all access to web-app is through a login method that calls a login.jsp page from a controller servlet. So all requests to jsp pages get redirected to the login page. But yesterday I noticed that if I included .jsp in the address the controller servlet and the login.jsp are completely bypassed and access is given to the jsp page. I've also recently changed the login method to use JCIFS and authenticate against NT domain controller rather than a mySQL database and I suppose it's possible that the problem is actually there. In investigating this though I've read that .jsp pages are public, which indicates to me that they CAN be accessed directly. Can anyone tell me if this is true. In other words is mapping .jsp to a servlet fruitless? If not then I guess I can conclude that it's the login method that is failing not the mapping. I've included this in my web.xml to force redirection of all .jsp page to the servlet but it seems to have no effect. The relevant portion of web.xml, mapped to servlet named 'sysadmin' further up in web.xml. servlet-mapping servlet-name sysadmin /servlet-name url-pattern .*jsp /url-pattern /servlet-mapping Thanks for any info, Ken - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Mapping .jsp to controller servlet
Erik, That's exactly what I want: no direct access but only through servlet. I'll try moving one to WEB-INF and see if that solves the problem. Ken -Original Message- From: Erik Price [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 11:32 AM To: Tomcat Users List Subject: Re: Mapping .jsp to controller servlet I may not be entirely clear on what you're saying, but if you're saying that no one should directly be able to request your JSPs and instead they should only access the contents of your site by requesting Servlet resources (which then forward to JSPs), perhaps it would be worth moving the JSPs into WEB-INF where they cannot be touched? AFAIK, you can still have the servlets dispatcher.forward() to the JSPs if you do this. Erik Januski, Ken wrote: Yesterday I noticed that an application that has been running successfully for about a year has a problem I've never noticed before. It's set up so that all access to web-app is through a login method that calls a login.jsp page from a controller servlet. So all requests to jsp pages get redirected to the login page. But yesterday I noticed that if I included .jsp in the address the controller servlet and the login.jsp are completely bypassed and access is given to the jsp page. I've also recently changed the login method to use JCIFS and authenticate against NT domain controller rather than a mySQL database and I suppose it's possible that the problem is actually there. In investigating this though I've read that .jsp pages are public, which indicates to me that they CAN be accessed directly. Can anyone tell me if this is true. In other words is mapping .jsp to a servlet fruitless? If not then I guess I can conclude that it's the login method that is failing not the mapping. I've included this in my web.xml to force redirection of all .jsp page to the servlet but it seems to have no effect. The relevant portion of web.xml, mapped to servlet named 'sysadmin' further up in web.xml. servlet-mapping servlet-name sysadmin /servlet-name url-pattern .*jsp /url-pattern /servlet-mapping Thanks for any info, Ken - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Mapping .jsp to controller servlet
Hmm. I got a 404 error after moving one jsp file to WEB-INF and trying to directly access it. That's not great but at least it prevents access. Worse though is that when I then try to go to page after having logged in I get a root cause: file not found error. So it looks to me like you can't move your .jsp files out of the root web-app directory. Can anyone shed any more light on this? -Original Message- From: Januski, Ken [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 11:36 AM To: Tomcat Users List Subject: RE: Mapping .jsp to controller servlet Erik, That's exactly what I want: no direct access but only through servlet. I'll try moving one to WEB-INF and see if that solves the problem. Ken -Original Message- From: Erik Price [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 11:32 AM To: Tomcat Users List Subject: Re: Mapping .jsp to controller servlet I may not be entirely clear on what you're saying, but if you're saying that no one should directly be able to request your JSPs and instead they should only access the contents of your site by requesting Servlet resources (which then forward to JSPs), perhaps it would be worth moving the JSPs into WEB-INF where they cannot be touched? AFAIK, you can still have the servlets dispatcher.forward() to the JSPs if you do this. Erik Januski, Ken wrote: Yesterday I noticed that an application that has been running successfully for about a year has a problem I've never noticed before. It's set up so that all access to web-app is through a login method that calls a login.jsp page from a controller servlet. So all requests to jsp pages get redirected to the login page. But yesterday I noticed that if I included .jsp in the address the controller servlet and the login.jsp are completely bypassed and access is given to the jsp page. I've also recently changed the login method to use JCIFS and authenticate against NT domain controller rather than a mySQL database and I suppose it's possible that the problem is actually there. In investigating this though I've read that .jsp pages are public, which indicates to me that they CAN be accessed directly. Can anyone tell me if this is true. In other words is mapping .jsp to a servlet fruitless? If not then I guess I can conclude that it's the login method that is failing not the mapping. I've included this in my web.xml to force redirection of all .jsp page to the servlet but it seems to have no effect. The relevant portion of web.xml, mapped to servlet named 'sysadmin' further up in web.xml. servlet-mapping servlet-name sysadmin /servlet-name url-pattern .*jsp /url-pattern /servlet-mapping Thanks for any info, Ken - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Quoting Shapira, Yoav [EMAIL PROTECTED]: Howdy, http://java.sun.com/docs/books/performance/1st_edition/html/JPAppGC.fm. html #997455 That's a good link. Thanks for posting it. It also makes the point that In addition to lengthening object lifetimes, finalize methods can increase object size. For example, some JVMs, such as the classic JVM implementation, add an extra hidden field to objects with finalize methods so that they can be held in a linked list finalization queue. I neglected to make this point, and it's true. These objects even show up neatly in my OptimizeIt and JProbe windows as java.lang.ref.Finalizer (BTW can anyone find the JavaDoc for that class?) instances. Hm, looks like it's a default access class so they problaly don't consider it part of the public Java API. The point is really that it depends. My issues are with the word will (as I completely agree. part of your normal implementation. I'd say finalilzers are specifically for abnormal situations where automatic memory management is insufficient for cleaning up an object's resources. And even then, you're still better off doing an explicit cleanup. I partially agree. But that's an idealistic view which is not always possible. cache object, if it's not reachable I want it gone as quickly as possible, not when the VM gets a chance to run its finalizer. The VM will run its finalizer always before the object is gone. Whether it's the default Object.finalize() or your custom one, some finalizer will always be run anyways. Of course, Object.finalize() is likely to be quicker than any other implementation, so it works best for your specific requirement above. I've been in several situations where efficient memory management is critical enough that this clear on finalization is a common requirement. That just seems like too much of a generalization. In fact, it's possible that finalizers may never be run. I'm much happier with a system that behaves predictably and relying on finalizers is a step in the opposite direction. I don't think finalizers reduce predictability at all. How is it possible they are never run for something that is going be GC'ed?? Ack! No, I'm not saying *if* they'll be run before deallocation is unpredictable (although it is possible for the VM to exit without runing finalizers) rather *when* they'll be run. So if I code: theCache.clear(); // no finalizer theCache = null; versus: theCache = null; // finalizer clears resources In the second case, I have no guarantee *when* the clearing takes place, only that it happens before theCache is deallocated. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Kris Schneider mailto:[EMAIL PROTECTED] D.O.Tech http://www.dotech.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [OFF-TOPIC] RE: Is it ok to close connection in finalize() ?
Howdy, Ack! No, I'm not saying *if* they'll be run before deallocation is Ahh, I misinterpreted your earlier message. I agree with everything else you said. Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mapping .jsp to controller servlet
Januski, Ken wrote: Hmm. I got a 404 error after moving one jsp file to WEB-INF and trying to directly access it. That's not great but at least it prevents access. Worse though is that when I then try to go to page after having logged in I get a root cause: file not found error. So it looks to me like you can't move your .jsp files out of the root web-app directory. Can anyone shed any more light on this? Oh, I didn't realize you were still trying to directly access the JSPs after login. I made the assumption that you were only using the forward method of RequestDispatcher to forward to those JSPs from your servlets. If you need to allow those JSPs to be directly accessed via HTTP requests, my solution won't work. Perhaps you can move them to a subfolder (not WEB-INF) and map a filter to it which only calls doFilterChain() if the user has a valid session and is logged in? If the subfolder was called /protected, you could use the URL pattern /protected/* as your filter mapping. Erik - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: startup issue (invalid CEN header)
hi, did that, complete fresh binaries - same error. huh... any suggestions what I could try else? thanks so much in advance, *Jay looks like one of your libraries (prob in server/lib or common/lib) is corrupted. simply try to replace them with fresh binaries. Filip -Original Message- From: Andre Jay Meissner [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 19, 2003 2:18 PM To: Tomcat Users List Subject: startup issue (invalid CEN header) hi, my tomcat 4.1.8 (mac os 10.2, J2SE 1.3.1) is not launching properly since today (it ran before). the startup.sh is giving me the usual three comments with envs and from the console everything just seems fine. but there is no action on 8080. catalina.out is complaining with the error below - no additional logging takes place. I´d greatly appreciate any help - thank you very much in advance! *Jay java.util.zip.ZipException: invalid CEN header (encrypted entry) at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.init(ZipFile.java:105) at java.util.jar.JarFile.init(JarFile.java:110) at java.util.jar.JarFile.init(JarFile.java:52) at org.apache.catalina.loader.StandardClassLoader.addRepositoryInternal(Standar dClassLoader.java:1082) at org.apache.catalina.loader.StandardClassLoader.init(StandardClassLoader.ja va:221) at org.apache.catalina.startup.ClassLoaderFactory.createClassLoader(ClassLoader Factory.java:204) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:147) Bootstrap: Class loader creation threw exception java.lang.IllegalArgumentException: addRepositoryInternal: java.util.zip.ZipException: invalid CEN header (encrypted entry) at org.apache.catalina.loader.StandardClassLoader.addRepositoryInternal(Standar dClassLoader.java:1110) at org.apache.catalina.loader.StandardClassLoader.init(StandardClassLoader.ja va:221) at org.apache.catalina.startup.ClassLoaderFactory.createClassLoader(ClassLoader Factory.java:204) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:147) count = 6, total = 51 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- thaijay.com -- delicious IT development consulting! Andre Jay Meissner - [EMAIL PROTECTED] Zehdenicker Strasse 1 - 10119 Berlin - Germany fon +49.(0)30.49853830 fax +49.(0)30.49853831 leo +49.(0)30.49853832 http://www.thaijay.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
re: 403 Forbidden - you don't have permission ... I'M STUCK!!
Oops, here are the files... How would you define the Directory in httpd.conf for the virtualhosts? Just add multiple Directory (s)? e.g. Directory /examples Options -Indexes /Directory Directory /webapps Options -Indexes /Directory The syntax appears to be ok after an apache.exe -t but The DocumentRoot is ignored as the DRs are defined in VirtualHost... correct? Attached is a copy of the auto generated mod_jk.conf the workers.properties file... - Original Message - From: Roberts, Eric [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 10:18 AM Subject: RE: 403 Forbidden - you don't have permission ... I'M STUCK!! 1) Yes each VH can have a Directory directive (as far as I can remember :-)) 2) I have the Tomcat Welcome page as the default page on our installation - in mod_jk.conf I added the lines: JKMount / ajp13 JKMount /* ajp13 in addition to my normal webapp mounts. Apache now completely ignores it's own default directory and sends all blank requests to Tomcats ROOT context. Plus all the links to Manager, Admin etc work! Ciao -Original Message- From: tomcat guy [mailto:[EMAIL PROTECTED]] Sent: Freitag, 21. Februar 2003 17:13 To: Tomcat Users List Subject: Re: 403 Forbidden - you don't have permission ... I'M STUCK!! I just noticed that! Like I was saying it had to be something simple. The default Directory / was not set. I'll do another ggghhh One word - documentation. Got another quick question now. Can you have a Directory setting for each virtualHost? Ok 2 questions. The default DocumentRoot is: DocumentRoot D:/Apache/Apache2/htdocs everything (all files) are being served under D:/Apache/Tomcat4.1/webapps Should the DocumentRoot be changed to this? Or does the connector handle this D:/Apache/Apache2/htdocs is ok??? - Original Message - From: Roberts, Eric [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Friday, February 21, 2003 9:50 AM Subject: RE: 403 Forbidden - you don't have permission ... I'M STUCK!! Sorry - didn't get your attachments - but think the problem is in httpd.conf Is your listen directive set? # # Listen: Allows you to bind Apache to specific IP addresses and/or # ports, in addition to the default. See also the VirtualHost # directive. # # Change this to Listen on specific IP addresses as shown below to # prevent Apache from glomming onto all bound IP addresses (0.0.0.0) # Listen 127.0.0.1:8080 ...in other words its the port that could be causing the problem. HTH -Original Message- From: tomcat guy [mailto:[EMAIL PROTECTED]] Sent: Freitag, 21. Februar 2003 16:48 To: Tomcat Users List Subject: Re: 403 Forbidden - you don't have permission ... I'M STUCK!! Bill, thanks for looking over the files... I checked the directory and everyone is set for file permissions. If they were not set wouldn't http://localhost:8080/examples be blocked? It accesses the same folder D:/Apache/Tomcat4.1/webapps/examples as http://localhost/examples . Isn't that correct??? The folder D:/Apache/Tomcat4.1/CTG/examples has the same permissions as D:/Apache/Tomcat4.1/webapps/examples. Any other ideas? What I need to access is the directory listing under D:/Apache/Tomcat4.1/CTG/temp... It is one of those things that has to be something so obvious, when (IF) I find it I'll probably screem! :) Until then... aaargghh... - Original Message - From: Bill Barker [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, February 21, 2003 12:24 AM Subject: Re: 403 Forbidden - you don't have permission ... any ideas? At a very quick glance, it looks like it should be Ok. My first guess would be tree permissions. Apache will tree-walk, so it needs at least 'rx' permissions to all directories upto and including D:/Apache/Tomcat4.1/CTG/examples. 403 is also Apache's normal response when you have disabled directory listings, but I didn't see that in my quick glance (quick := I very well may have overlooked something :). tomcat guy [EMAIL PROTECTED] wrote in message 001301c2d91d$b63a0590$6601a8c0@ctg">news:001301c2d91d$b63a0590$6601a8c0@ctg... If anyone can help, here is my problem: I can go to http://localhost:8080/examples and I get the directory listing images/ jsp/ servlets/. BUT when I go to http://localhost/examples I get the forbidden error?!? Any ideas? The permissions are all good. I go to http://localhost/examples/jps and it works? The JSP's work along with the servlets. I recently reinstalled my apache server. I cannot remember this not working. What did I forget!!! (besides my documentation, of course). Basically I need to setup a directory path to http://localhost/examples/temp or http://localhost/temp to my virtualHost http://ctg.com/examples nothing is working!!! I have attached a copy of my httpd.conf server.xml.
RE: Performance Issue
Looks like either your network connection is super slow, or your oracle is not
optimized at all.
if it is oracle, go to amazon.com, buy yourself an oracle performance tuning book :)
it is the fastest return on investment you will ever see.
nothing to do with tomcat.
Filip
-Original Message-
From: vikas yk [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 20, 2003 8:43 PM
To: [EMAIL PROTECTED]
Subject: Performance Issue
I am making call Oracle Function on remote database .
The values are taken in result set.The numbers of records in
result set are aroung 6000.
when I do
while(rs.next())
{
//My logic
}
This takes aroung 5 min(300 sec) to get completed
Now I commented all my logic inside while loop of rs.next()
then also its taking around 4 min (250 sec) to just loop through
records.
Is there any way I can minize my time to recurse through
records.
I am using oracle thin driver to make connection.
-
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Re: Help! Anyone successfully install a purchased certificate?
Richard, Thanks so much for your reply! I'm trying one last time with InstantSSL. We'll find out soon and I'll let everyone know whether you can go with InstantSSL or not! :-) -Matt --- Richard S. Huntrods [EMAIL PROTECTED] wrote: *** I am re-sending this email with the attachment 'kt.bat' removed and the text of the batch file included in email body - after being flooded with anti-virus messages from a couple dozen ISP's that have labelled '.bat' files as potential viruses. *** Matt, I'm sorry I didn't see this sooner (or did you post before you purchased?). I've installed a Thawte Certificate (one year ago), and then installed the renewal certificate again this month. The first installation was a nightmare, because no-one seemed to know all of the required details (and you must get them ALL correct, or nothing works!) Anyway, the technicians at Thawte finally figured the problem, and we got it working. This time, I simply followed the same process and it worked the very first time. I'm attaching an abbreviated step-by-step for SSL certificates using ONLY Tomcat (no Apache in the loop). This is a DOS-type BATCH file that I used on my Win2K machine to generate the appropriate certificates. The actual certificate runs on my production server, which is Solaris 2.8 on a Sparc E250, running only Tomcat and MySQL. In otherwords, the process should be portable. The only other IMPORTANT item is the type of certificate. In my case, the only mistake in the whole original process (that caused everything to fail) was that I requested the wrong certificate type. Once the correct certificate was requested, it all worked - and has been working ever since! The type you want is PKCS #7 no other type worked for me (we tried them all G). If you cannot get it to work with JUST Tomcat at all, get a refund and RUN (don't walk) to the Thawte website and get one of theirs. Cheers, -Richard DISCLAIMER: I have no connection whatsoever with Thawte. I receive nothing for endorsing their certificate. The only reason I endorse Thawte is that I know their certs do work with Tomcat, and their tech support is pretty good. ===kt.bat=== @echo off rem mycompany.com rem INSTRUCTIONS rem 1. BE SURE JAVA (I use SDK 1.4) is installed and WORKING before you begin... rem 2. unremark the lines with asterisks '*' for each step in the process. remthe batch file is run once for each step. rem 3. BETWEEN Step 2 and 3, you must copy the CSR to the appropriate place on the remThawte website and request the PKCS#7 certificate. It will arrive by email remonce all the 'paperwork' has been processed. Save this as a text file 'myc-thawte.txt' remand proceed to step 3. rem 4. Of course, you will have to modify the field data to suit your actual information. rem STEP 1. - generate the .keystore file (self-signed certificate) rem remove the .keystore file or step 1 will fail rem*if exist .keystore del .keystore rem generate the self-signed certificate rem* keytool -genkey -alias tomcat -keyalg RSA -keystore .keystore -dname CN=mycompany.com, OU=myc, O=My Company Name, L=MyCity, S=MyProvince, C=CA -storepass mypassword rem*copy .keystore keystore.private rem STEP 2. - generate the csr (can be done together with step 1) rem remove the -csr.txt file or step 2 will fail rem*if exist *-csr.txt del *-csr.txt rem make the appropriate CSR - mycompany.com rem*keytool -certreq -alias tomcat -keystore .keystore -file myc-csr.txt -storepass mypassword rem STEP 3. - after the signer has issued the certificate, import it into a new .keystore file rem import thawte certificate - mycompany.com rem*keytool -import -v -alias tomcat -trustcacerts -keystore .keystore -file myc-thawte.txt -storepass mypassword rem verify the keystore (I do this for every step) keytool -list -keystore .keystore -storepass mypassword Subject: Re: Help! Anyone successfully install a purchased certificate? They do have Apache instructions. But I guess I better request that soon before the warranty runs out. LOL They have instructions for how to do create and install it with generic Java based servers but it hasn't been specific enough with Tomcat. -Matt --- Ian Hunter [EMAIL PROTECTED] wrote: From what I understand, some different certificate vendors require different installation methods... Did they include instructions for IIS or Apache, for instance? Worst possible case you could front-end your site(s) with Apache and use connectors to get to Tomcat. - Original Message - From: Matt Fury [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, February 20, 2003 3:58 PM Subject: Help! Anyone
RE: Mapping .jsp to controller servlet
Erik, Thanks. Sorry I haven't been clearer. The servlet does use request.include. I just added a try/catch to it and noticed that it fails when trying to include the file that I've put in WEB-INF. The error is javax.servlet.ServletException: queries.jsp. I would like to get a few things clear before I pursue filters, which I haven't used before. Is it true that any jsp file put in root directory will be accessible to anyone by just putting the url to it in browser? And if so do you or anyone else know if moving it to a protected folder should solve it. I know that's your theory. If it's correct then for now I'll pursue getting that to work. If not then I guess I'll need to take a closer look at filters. Thanks again, Ken -Original Message- From: Erik Price [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 11:51 AM To: Tomcat Users List Subject: Re: Mapping .jsp to controller servlet Januski, Ken wrote: Hmm. I got a 404 error after moving one jsp file to WEB-INF and trying to directly access it. That's not great but at least it prevents access. Worse though is that when I then try to go to page after having logged in I get a root cause: file not found error. So it looks to me like you can't move your .jsp files out of the root web-app directory. Can anyone shed any more light on this? Oh, I didn't realize you were still trying to directly access the JSPs after login. I made the assumption that you were only using the forward method of RequestDispatcher to forward to those JSPs from your servlets. If you need to allow those JSPs to be directly accessed via HTTP requests, my solution won't work. Perhaps you can move them to a subfolder (not WEB-INF) and map a filter to it which only calls doFilterChain() if the user has a valid session and is logged in? If the subfolder was called /protected, you could use the URL pattern /protected/* as your filter mapping. Erik - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Performance Issue
Another thing you can try is to time how long it takes to get the FIRST
record, rather than the entire thing. Sometimes the actual result set is
fully realized until after the first row is fetched.
Once the result set is realized on Oracle, fetching should be pretty quick.
Regards,
Will Hartung
([EMAIL PROTECTED])
- Original Message -
From: vikas yk [EMAIL PROTECTED]
To: Tomcat Users List [EMAIL PROTECTED]
Sent: Friday, February 21, 2003 2:52 AM
Subject: Re: Re: Performance Issue
Hi peter
Thanks for your reply.
I didnt get what u meant by testing it with bean
What I did was
recorded the time before I executed the Proc
recorded the time after I got result result set
recorded the time after commenting all the logic I had in
while(rs.next()){} loop.
I need all 6000 rows coz
on my page i am selecting one item in my combo-box and based on
value i select second combo box on same page gets populated.
Unfortunately there is one value which is creating problem
Any help will be of great help 2 me
On Fri, 21 Feb 2003 Peter Lin wrote :
If you're reading out 6K rows remotely, you're limited by
bandwidth. Especially if the webserver only has one ethernet card
and you're viewing the pages from another client. If you're
concerned about performance, I would suggest writing a simple
test bean to do the same exact query and time the elapse time to
get the data. Then you can subtract the transport time from the
total elapsed time.
Is there a reason you need all 6000 rows? That's a lot of data to
view in one shot. If you can break it into pages, or preload that
data, it should improve the response time.
peter
vikas yk [EMAIL PROTECTED] wrote:I am making call Oracle
Function on remote database .
The values are taken in result set.The numbers of records in
result set are aroung 6000.
when I do
while(rs.next())
{
//My logic
}
This takes aroung 5 min(300 sec) to get completed
Now I commented all my logic inside while loop of rs.next()
then also its taking around 4 min (250 sec) to just loop
through
records.
Is there any way I can minize my time to recurse through
records.
I am using oracle thin driver to make connection.
-
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[EMAIL PROTECTED]
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[EMAIL PROTECTED]
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Re: Tomcat 4.1.18 Internal Server Error
Hello! On Fri, Feb 21, 2003 at 11:28:58AM -0500, Shapira, Yoav wrote: Howdy, Are you running tomcat with a security manager, and if so what does your policy file look like? Sorry but what's a secutrty manager? I am new to Tomcat, Java ... and I was happy to get Tomcat running. I solved the problem in an other way. I copied the *.jar (xerces symlink) files from the /usr/share/tomcat4/common dir to /usr/share/tomcat4/common/lib. That fixed the problem. And after 3 days my servlet is working;-)) Thanks for the fast reply:) Mark - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Re: Performance Issue
Something else to remember is the way that the JDBC driver in oracle works.
You have to retrieve all the records that match your sql query. Oracle
will do this whether you want it to or not.
However that said, if the query is static (ie the where clause doesn't
change except for the values you're looking for), you ought to look at the
oracle xdk. Their XSQL servlet is a wonderful thing. And it's orders of
magnitude faster than doing straight jdbc calles, probably 'cause they use
underlying oracle api calls rather than standard jdbc calls. As long as
you're using oracle this is a great way to go.
--mikej
-=-
mike jackson
[EMAIL PROTECTED]
-Original Message-
From: Will Hartung [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 21, 2003 9:25 AM
To: Tomcat Users List; vikas yk
Subject: Re: Re: Performance Issue
Another thing you can try is to time how long it takes to get the FIRST
record, rather than the entire thing. Sometimes the actual result set is
fully realized until after the first row is fetched.
Once the result set is realized on Oracle, fetching should be
pretty quick.
Regards,
Will Hartung
([EMAIL PROTECTED])
- Original Message -
From: vikas yk [EMAIL PROTECTED]
To: Tomcat Users List [EMAIL PROTECTED]
Sent: Friday, February 21, 2003 2:52 AM
Subject: Re: Re: Performance Issue
Hi peter
Thanks for your reply.
I didnt get what u meant by testing it with bean
What I did was
recorded the time before I executed the Proc
recorded the time after I got result result set
recorded the time after commenting all the logic I had in
while(rs.next()){} loop.
I need all 6000 rows coz
on my page i am selecting one item in my combo-box and based on
value i select second combo box on same page gets populated.
Unfortunately there is one value which is creating problem
Any help will be of great help 2 me
On Fri, 21 Feb 2003 Peter Lin wrote :
If you're reading out 6K rows remotely, you're limited by
bandwidth. Especially if the webserver only has one ethernet card
and you're viewing the pages from another client. If you're
concerned about performance, I would suggest writing a simple
test bean to do the same exact query and time the elapse time to
get the data. Then you can subtract the transport time from the
total elapsed time.
Is there a reason you need all 6000 rows? That's a lot of data to
view in one shot. If you can break it into pages, or preload that
data, it should improve the response time.
peter
vikas yk [EMAIL PROTECTED] wrote:I am making call Oracle
Function on remote database .
The values are taken in result set.The numbers of records in
result set are aroung 6000.
when I do
while(rs.next())
{
//My logic
}
This takes aroung 5 min(300 sec) to get completed
Now I commented all my logic inside while loop of rs.next()
then also its taking around 4 min (250 sec) to just loop
through
records.
Is there any way I can minize my time to recurse through
records.
I am using oracle thin driver to make connection.
-
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[EMAIL PROTECTED]
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[EMAIL PROTECTED]
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Yahoo! Tax Center - forms, calculators, tips, and more
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Re: Servlet filter and listerner best practices
From: Etienne [EMAIL PROTECTED] Sent: Friday, February 21, 2003 3:47 AM Subject: Servlet filter and listerner best practices Hi all, I am looking for some best practices for servlet filter (and servlet listener). These are quite new (servlet 2.3). I am using a servlet filter on some of my jsp page, but I would need a detail example of the best way to implement it. It kind of all depends on what your Filter needs to do. Passive filters (like, say, a Logging Filter) can be quite different from something like a GZip filter, which needs to really muck about with the request and streams and what not. I am not sure how to catch exception in the servlet filter without hiding everything in the back on it. Pretty standard exception technique here. If you catch an exception that you don't want to deal with, simply throw it again and let something else higher up take care of it. Even better, don't catch exceptions that you can't handle at all. The old proclamation of Don't test for something you can't handle rings loudly here. Perhaps some more detail about your situation would be helpful. Is there a more precise way (with some reg ex?) to associate a filter with pages? I dunno, the filter specification is pretty specific, perhaps too specific meaning that for lots of disparate pages, you'll have lots of entries in the web.xml. Perhaps if you could organize your pages in a hierarchy so you could simply put the filter on a parent directory part of the path would help reduce the load on the web.xml file. Regards, Will Hartung ([EMAIL PROTECTED]) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
apache tomcat (this old problem)
Hello. First of all: sorry for my terrible English. Second, I'm introducing myself: My name is Dani. Third thing (and the most important): my problem :-). Again this silly and old problem?, you may say, but I can't solve it. Help me please. I've installed red hat 7.2, apache 2.0.44 tomcat 4.1.18. I'm trying to connect apache - tomcat each other, but I can't. I've downloaded mod_jk2-2.0.43.so and I've configure server.xml and workers2.properties as it is described in the mod_jk2 documentation. But it doesn't work. Maybe server.xml or workers2.properties are bad (workers2.properties didn't exist previously) or maybe mod_jk2-2.0.43 is not the correct module or maybe I put them in a bad place. I don't know. Any suggestion? Thanks for your patient. - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: apache tomcat (this old problem)
look in your log files, find the errors and send them to us -Original Message- From: Dani [mailto:alchasira@xxx] Sent: Friday, February 21, 2003 10:02 AM To: tomcat-user@xx Subject: apache tomcat (this old problem) Hello. First of all: sorry for my terrible English. Second, I'm introducing myself: My name is Dani. Third thing (and the most important): my problem :-). Again this silly and old problem?, you may say, but I can't solve it. Help me please. I've installed red hat 7.2, apache 2.0.44 tomcat 4.1.18. I'm trying to connect apache - tomcat each other, but I can't. I've downloaded mod_jk2-2.0.43.so and I've configure server.xml and workers2.properties as it is described in the mod_jk2 documentation. But it doesn't work. Maybe server.xml or workers2.properties are bad (workers2.properties didn't exist previously) or maybe mod_jk2-2.0.43 is not the correct module or maybe I put them in a bad place. I don't know. Any suggestion? Thanks for your patient. - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: apache tomcat (this old problem)
That's the correct *.so file. If you post relevant portions of your configuration, that would help us help you faster. John -Original Message- From: Dani [mailto:alchasira@xxx] Sent: Friday, February 21, 2003 1:02 PM To: tomcat-user@xx Subject: apache tomcat (this old problem) Hello. First of all: sorry for my terrible English. Second, I'm introducing myself: My name is Dani. Third thing (and the most important): my problem :-). Again this silly and old problem?, you may say, but I can't solve it. Help me please. I've installed red hat 7.2, apache 2.0.44 tomcat 4.1.18. I'm trying to connect apache - tomcat each other, but I can't. I've downloaded mod_jk2-2.0.43.so and I've configure server.xml and workers2.properties as it is described in the mod_jk2 documentation. But it doesn't work. Maybe server.xml or workers2.properties are bad (workers2.properties didn't exist previously) or maybe mod_jk2-2.0.43 is not the correct module or maybe I put them in a bad place. I don't know. Any suggestion? Thanks for your patient. - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: apache tomcat (this old problem)
Not sure if mode_jk2-2.0.43.so works with apache 2.0.44. But
workers2.properties and jk2.properties are quite simple.
After I built tomcat-connector from source, I only did following changes
1. /usr/local/apache2/conf/workers2.properties
# shared memory handling.
[shm]
file=/usr/local/jakarta-tomcat-4.1.18/work/jk2.shm
size=1048576
# example socket channel, explicitly set port and host
[channel.socket:jackass:8009]
tomcatId=jackass:8009
# uri mapping
[uri:/examples/*]
2. /usr/local/Jakarta-tomcat-4.1.18/conf/jk2.properties
shm.file=${jkHome}/work/jk2.shm
3. No need to modify server.xml
4. /usr/local/apache2/conf/httpd.conf
LoadModule jk2_module modules/mod_jk2.so
Please show us the log so that we can better understand why it does work.
Regards,
PQ
This Guy Thinks He Knows Everything
This Guy Thinks He Knows What He Is Doing
-Original Message-
From: Dani [mailto:alchasira@xxx]
Sent: February 21, 2003 1:02 PM
To: tomcat-user@xx
Subject: apache tomcat (this old problem)
Hello. First of all: sorry for my terrible English. Second, I'm introducing
myself: My name is Dani. Third thing (and the most important): my problem
:-).
Again this silly and old problem?, you may say, but I can't solve it. Help
me please.
I've installed red hat 7.2, apache 2.0.44 tomcat 4.1.18. I'm trying to
connect apache - tomcat each other, but I can't.
I've downloaded mod_jk2-2.0.43.so and I've configure server.xml and
workers2.properties as it is described in the mod_jk2 documentation. But it
doesn't work. Maybe server.xml or workers2.properties are bad
(workers2.properties didn't exist previously) or maybe mod_jk2-2.0.43 is not
the correct module or maybe I put them in a bad place. I don't know. Any
suggestion?
Thanks for your patient.
-
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RE: redirectPort results in HTTP Status 500
CONFIDENTIAL will only allow it to be transported via https. -Original Message- From: Bryan Field-Elliot [mailto:bryan_lists@xxx] Sent: Friday, February 21, 2003 1:02 PM To: Tomcat Users List Subject: redirectPort results in HTTP Status 500 I am (for the first time) playing with security-constraint transport-guarantee CONFIDENTIAL. My site is already working fine on ports 80 and 443 (SSL), I've just never used this declarative security mechanism before. I have this constraint applied to page test.jsp for me to test the redirection. Every time I hit the page, I get a HTTP Status 500 from Tomcat (4.1.18), The server encountered an internal error (/test.jsp) that prevented it from fulfilling this request.. When I hit the page test.jsp from https://, it loads just fine. Any help would be appreciated! Am I missing something? BTW Tomcat is fronted by Apache and mod_webapp. Bryan - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: redirectPort results in HTTP Status 500
On Fri, 2003-02-21 at 11:10, John Trollinger wrote: CONFIDENTIAL will only allow it to be transported via https. That's right. That's the effect I'm trying to achieve... When tomcat receives a request for /test.jsp on port 80, have it redirect to port 443 with https:. It's documented that this is supposed to work, but, I am hitting a snag somewheres.. Bryan
RE: apache tomcat (this old problem)
you can't have two connectors listen to the same port, in your case 8080 Filip -Original Message- From: Dani [mailto:alchasira@xxx] Sent: Friday, February 21, 2003 10:15 AM To: Tomcat Users List Subject: RE: apache tomcat (this old problem) - This is the apache error_log when I'm trying to connect [Fri Feb 21 19:06:15 2003] [error] workerEnv.init() create slot epStat.1 failed [Fri Feb 21 19:06:15 2003] [error] lb.service() worker failed ajp13:192.168.5.1:8080 [Fri Feb 21 19:06:15 2003] [error] lb.service() unrecoverable error... [Fri Feb 21 19:06:15 2003] [error] mod_jk.handler() Error connecting to tomcat 12 - And this is the worker2.properties: #Define the communication channel [channel.socket:192.168.5.1:8080] info=Ajp13 forwarding over socket tomcatId=192.168.5.1:8080 #Map the Tomcat examples webapp to the Web server uri space [uri:/examples/*] info=Map the whole webapp - I add this line in the httpd.conf in the apache2/conf directory: LoadModule jk2_module modules/mod_jk2-2.0.43.so - This is jk2.properties in jakarta-tomcat/conf directory (only this line): channelSocket.port=8080 - This is part of the server.xml file: ... Server port=8080 shutdown=SHUTDOWN debug=0 ... Service name=Tomcat-Apache ... Connector className=org.apache.coyote.tomcat4.CoyoteConnector port=8080 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=100 debug=0 connectionTimeout=2 useURIValidationHack=false disableUploadTimeout=true / Connector className=org.apache.coyote.tomcat4.CoyoteConnector port=8080 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=10 debug=0 connectionTimeout=0 useURIValidationHack=false protocolHandlerClassName=org.apache.jk.server.JkCoyoteHandler/ Connector className=org.apache.ajp.tomcat4.Ajp13Connector port=8080 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ . - Original Message - From: Dani alchasira@xxx To: tomcat-user@xx Sent: Friday, February 21, 2003 7:01 PM Subject: apache tomcat (this old problem) Hello. First of all: sorry for my terrible English. Second, I'm introducing myself: My name is Dani. Third thing (and the most important): my problem :-). Again this silly and old problem?, you may say, but I can't solve it. Help me please. I've installed red hat 7.2, apache 2.0.44 tomcat 4.1.18. I'm trying to connect apache - tomcat each other, but I can't. I've downloaded mod_jk2-2.0.43.so and I've configure server.xml and workers2.properties as it is described in the mod_jk2 documentation. But it doesn't work. Maybe server.xml or workers2.properties are bad (workers2.properties didn't exist previously) or maybe mod_jk2-2.0.43 is not the correct module or maybe I put them in a bad place. I don't know. Any suggestion? Thanks for your patient. - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: apache tomcat (this old problem)
Try channel.socket::8009 Regards, PQ This Guy Thinks He Knows Everything This Guy Thinks He Knows What He Is Doing -Original Message- From: Dani [mailto:alchasira@xxx] Sent: February 21, 2003 1:15 PM To: Tomcat Users List Subject: RE: apache tomcat (this old problem) - This is the apache error_log when I'm trying to connect [Fri Feb 21 19:06:15 2003] [error] workerEnv.init() create slot epStat.1 failed [Fri Feb 21 19:06:15 2003] [error] lb.service() worker failed ajp13:192.168.5.1:8080 [Fri Feb 21 19:06:15 2003] [error] lb.service() unrecoverable error... [Fri Feb 21 19:06:15 2003] [error] mod_jk.handler() Error connecting to tomcat 12 - And this is the worker2.properties: #Define the communication channel [channel.socket:192.168.5.1:8080] info=Ajp13 forwarding over socket tomcatId=192.168.5.1:8080 #Map the Tomcat examples webapp to the Web server uri space [uri:/examples/*] info=Map the whole webapp - I add this line in the httpd.conf in the apache2/conf directory: LoadModule jk2_module modules/mod_jk2-2.0.43.so - This is jk2.properties in jakarta-tomcat/conf directory (only this line): channelSocket.port=8080 - This is part of the server.xml file: ... Server port=8080 shutdown=SHUTDOWN debug=0 ... Service name=Tomcat-Apache ... Connector className=org.apache.coyote.tomcat4.CoyoteConnector port=8080 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=100 debug=0 connectionTimeout=2 useURIValidationHack=false disableUploadTimeout=true / Connector className=org.apache.coyote.tomcat4.CoyoteConnector port=8080 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=10 debug=0 connectionTimeout=0 useURIValidationHack=false protocolHandlerClassName=org.apache.jk.server.JkCoyoteHandler/ Connector className=org.apache.ajp.tomcat4.Ajp13Connector port=8080 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ . - Original Message - From: Dani alchasira@xxx To: tomcat-user@xx Sent: Friday, February 21, 2003 7:01 PM Subject: apache tomcat (this old problem) Hello. First of all: sorry for my terrible English. Second, I'm introducing myself: My name is Dani. Third thing (and the most important): my problem :-). Again this silly and old problem?, you may say, but I can't solve it. Help me please. I've installed red hat 7.2, apache 2.0.44 tomcat 4.1.18. I'm trying to connect apache - tomcat each other, but I can't. I've downloaded mod_jk2-2.0.43.so and I've configure server.xml and workers2.properties as it is described in the mod_jk2 documentation. But it doesn't work. Maybe server.xml or workers2.properties are bad (workers2.properties didn't exist previously) or maybe mod_jk2-2.0.43 is not the correct module or maybe I put them in a bad place. I don't know. Any suggestion? Thanks for your patient. - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: redirectPort results in HTTP Status 500
make sure your redirect port is set to 443 and not 8443 in server.xml Filip -Original Message- From: Bryan Field-Elliot [mailto:bryan_lists@xxx] Sent: Friday, February 21, 2003 10:13 AM To: Tomcat Users List Subject: RE: redirectPort results in HTTP Status 500 On Fri, 2003-02-21 at 11:10, John Trollinger wrote: CONFIDENTIAL will only allow it to be transported via https. That's right. That's the effect I'm trying to achieve... When tomcat receives a request for /test.jsp on port 80, have it redirect to port 443 with https:. It's documented that this is supposed to work, but, I am hitting a snag somewheres.. Bryan - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: redirectPort results in HTTP Status 500
On Fri, 2003-02-21 at 11:13, Filip Hanik wrote: make sure your redirect port is set to 443 and not 8443 in server.xml Filip Thanks.. It is (set correctly to 443). Bryan
Re: Help! Anyone successfully install a purchased certificate?
Matt, You are most welcome. I do hope it works for you, but I also know you would be very happy with Thawte. I chose them based on cost (less that 1/2 verisign and others). Cheers, -Richard Matt Fury wrote: Richard, Thanks so much for your reply! I'm trying one last time with InstantSSL. We'll find out soon and I'll let everyone know whether you can go with InstantSSL or not! :-) -Matt --- Richard S. Huntrods huntrods@xxx wrote: *** I am re-sending this email with the attachment 'kt.bat' removed and the text of the batch file included in email body - after being flooded with anti-virus messages from a couple dozen ISP's that have labelled '.bat' files as potential viruses. *** Matt, I'm sorry I didn't see this sooner (or did you post before you purchased?). I've installed a Thawte Certificate (one year ago), and then installed the renewal certificate again this month. The first installation was a nightmare, because no-one seemed to know all of the required details (and you must get them ALL correct, or nothing works!) Anyway, the technicians at Thawte finally figured the problem, and we got it working. This time, I simply followed the same process and it worked the very first time. I'm attaching an abbreviated step-by-step for SSL certificates using ONLY Tomcat (no Apache in the loop). This is a DOS-type BATCH file that I used on my Win2K machine to generate the appropriate certificates. The actual certificate runs on my production server, which is Solaris 2.8 on a Sparc E250, running only Tomcat and MySQL. In otherwords, the process should be portable. The only other IMPORTANT item is the type of certificate. In my case, the only mistake in the whole original process (that caused everything to fail) was that I requested the wrong certificate type. Once the correct certificate was requested, it all worked - and has been working ever since! The type you want is PKCS #7 no other type worked for me (we tried them all G). If you cannot get it to work with JUST Tomcat at all, get a refund and RUN (don't walk) to the Thawte website and get one of theirs. Cheers, -Richard DISCLAIMER: I have no connection whatsoever with Thawte. I receive nothing for endorsing their certificate. The only reason I endorse Thawte is that I know their certs do work with Tomcat, and their tech support is pretty good. ===kt.bat=== echo off rem mycompany.com rem INSTRUCTIONS rem 1. BE SURE JAVA (I use SDK 1.4) is installed and WORKING before you begin... rem 2. unremark the lines with asterisks '*' for each step in the process. remthe batch file is run once for each step. rem 3. BETWEEN Step 2 and 3, you must copy the CSR to the appropriate place on the remThawte website and request the PKCS#7 certificate. It will arrive by email remonce all the 'paperwork' has been processed. Save this as a text file 'myc-thawte.txt' remand proceed to step 3. rem 4. Of course, you will have to modify the field data to suit your actual information. rem STEP 1. - generate the .keystore file (self-signed certificate) rem remove the .keystore file or step 1 will fail rem*if exist .keystore del .keystore rem generate the self-signed certificate rem* keytool -genkey -alias tomcat -keyalg RSA -keystore .keystore -dname CN=mycompany.com, OU=myc, O=My Company Name, L=MyCity, S=MyProvince, C=CA -storepass mypassword rem*copy .keystore keystore.private rem STEP 2. - generate the csr (can be done together with step 1) rem remove the -csr.txt file or step 2 will fail rem*if exist *-csr.txt del *-csr.txt rem make the appropriate CSR - mycompany.com rem*keytool -certreq -alias tomcat -keystore .keystore -file myc-csr.txt -storepass mypassword rem STEP 3. - after the signer has issued the certificate, import it into a new .keystore file rem import thawte certificate - mycompany.com rem*keytool -import -v -alias tomcat -trustcacerts -keystore .keystore -file myc-thawte.txt -storepass mypassword rem verify the keystore (I do this for every step) keytool -list -keystore .keystore -storepass mypassword Subject: Re: Help! Anyone successfully install a purchased certificate? They do have Apache instructions. But I guess I better request that soon before the warranty runs out. LOL They have instructions for how to do create and install it with generic Java based servers but it hasn't been specific enough with Tomcat. -Matt --- Ian Hunter ihunter@x wrote: From what I understand, some different certificate vendors require different installation methods... Did they include instructions for IIS or Apache, for instance? Worst possible case you could front-end your site(s) with Apache and use connectors to get to Tomcat. - Original Message - From: Matt Fury matty@ To: tomcat-user@xx Sent: Thursday, February 20,
RE: Mapping .jsp to controller servlet
Thanks Erik, I'm going to hold off for awhile and see if anyone clarifies the public nature of the .jsp files and any possible way around it. In the meantime I'll keep experimenting on my own. If that leads to nothing, as I sort of suspect it will, then it's on to filters and more questions about them. Ken -Original Message- From: Erik Price [mailto:eprice@xxx] Sent: Friday, February 21, 2003 12:40 PM To: Tomcat Users List Subject: Re: Mapping .jsp to controller servlet Januski, Ken wrote: Erik, Thanks. Sorry I haven't been clearer. The servlet does use request.include. I just added a try/catch to it and noticed that it fails when trying to include the file that I've put in WEB-INF. The error is javax.servlet.ServletException: queries.jsp. Oh. Sorry about that. For some reason I remember someone on this list saying that they did something like putting their JSPs in WEB-INF and include() or forward()ed to them. But I must have been mistaken. I would like to get a few things clear before I pursue filters, which I haven't used before. Is it true that any jsp file put in root directory will be accessible to anyone by just putting the url to it in browser? It is my understanding that this is how it is supposed to work. I have changed my own code to use servlets that forward to JSPs, but originally I started out with a setup that allowed users to directly request JSPs. It doesn't require any special extra effort on the part of the developer. And if so do you or anyone else know if moving it to a protected folder should solve it. I know that's your theory. If it's correct then for now I'll pursue getting that to work. If not then I guess I'll need to take a closer look at filters. Hopefully someone else can clarify. But the theory would go like this: 1. All JSPs are tucked away in a subdirectory. 2. A filter is mapped to any requests of any resource under that subdirectory. 3. The filter checks the session to determine if the user making the request is properly authenticated. If so, do nothing (actually, doing nothing really means allowing the filter to call its doFilterChain method, which in this case would allow the request to pass through since the JSP itself is the next resource in the chain). However, if the user's session indicates that the user is not authenticated, you could call response.sendRedirect() to send the user to another page or servlet or perhaps the Login resource. However, be sure to put a return statement immediately after the call to sendRedirect because I discovered (in implementing an identical filter to the one I am describing) that the sendRedirect doesn't happen fast enough to stop the filter from calling doFilterChain, and that the JSP would get served anyway. Putting a return in your filter will prevent the doFilterChain() from getting called. If this is confusing, fire away, I can explain this better in more detail. Erik - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
RE: Servlet filter and listerner best practices
Thanks Will, The filter servlet is only for logging checking and parameter init. I would have like to learn more about (J2EE) pattern using filter and listener servlet. The problem about the filter servlet is that doFilter() do not throws exception, so we must catch everything in doFilter. So that is why I was hiding everything in back of it. It can be hard to debug that way. Regards, Etienne -Original Message- From: Will Hartung [mailto:willh@x] Sent: February 21, 2003 12:36 PM To: Tomcat Users List Subject: Re: Servlet filter and listerner best practices From: Etienne etienno@ Sent: Friday, February 21, 2003 3:47 AM Subject: Servlet filter and listerner best practices Hi all, I am looking for some best practices for servlet filter (and servlet listener). These are quite new (servlet 2.3). I am using a servlet filter on some of my jsp page, but I would need a detail example of the best way to implement it. It kind of all depends on what your Filter needs to do. Passive filters (like, say, a Logging Filter) can be quite different from something like a GZip filter, which needs to really muck about with the request and streams and what not. I am not sure how to catch exception in the servlet filter without hiding everything in the back on it. Pretty standard exception technique here. If you catch an exception that you don't want to deal with, simply throw it again and let something else higher up take care of it. Even better, don't catch exceptions that you can't handle at all. The old proclamation of Don't test for something you can't handle rings loudly here. Perhaps some more detail about your situation would be helpful. Is there a more precise way (with some reg ex?) to associate a filter with pages? I dunno, the filter specification is pretty specific, perhaps too specific meaning that for lots of disparate pages, you'll have lots of entries in the web.xml. Perhaps if you could organize your pages in a hierarchy so you could simply put the filter on a parent directory part of the path would help reduce the load on the web.xml file. Regards, Will Hartung (willh@x) - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
Re: redirectPort results in HTTP Status 500
Well, I was using JDK 1.3.1, and just for fun I tried booting up Tomcat on JDK 1.4, and the problem below just vanished. It works now. I'll report this as a bug (or at least, a request for documentation addendum) in Bugzilla, if it isn't already... On Fri, 2003-02-21 at 11:02, Bryan Field-Elliot wrote: I am (for the first time) playing with security-constraint transport-guarantee CONFIDENTIAL. My site is already working fine on ports 80 and 443 (SSL), I've just never used this declarative security mechanism before. I have this constraint applied to page test.jsp for me to test the redirection. Every time I hit the page, I get a HTTP Status 500 from Tomcat (4.1.18), The server encountered an internal error (/test.jsp) that prevented it from fulfilling this request.. When I hit the page test.jsp from https://, it loads just fine. Any help would be appreciated! Am I missing something? BTW Tomcat is fronted by Apache and mod_webapp. Bryan
Re: Servlet filter and listerner best practices
From: Etienne etienno@ Sent: Friday, February 21, 2003 11:06 AM Subject: RE: Servlet filter and listerner best practices Thanks Will, The filter servlet is only for logging checking and parameter init. I would have like to learn more about (J2EE) pattern using filter and listener servlet. Logging is pretty simple, as you simply Do Your Thing either before or after the doFilter call (or both). Here the Filter is a simple wrapper. I think they're handy for doing the parameter parsing and creating a local instance of a specific Parameter class that your code relies on. This helps loosen up the binding between your logic and the fact that it's buried in a Servlet container. Of course, you still need to pass in the Parameter, I stuff it into the Request as an attribute. The problem about the filter servlet is that doFilter() do not throws exception, so we must catch everything in doFilter. So that is why I was hiding everything in back of it. It can be hard to debug that way. Well, it can throw a ServletException, which is the same as the Servlet.service() method, though service() also can throw an IOException, so you're really not losing anything. Mind I'm not saying that it can't be limiting, but it's just not that much more limiting than the normal happenings within Servlet programming. Regards, Will Hartung (willh@x) - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
wrestling with JSP error page
Hi, all. I'm finding that the JSP errorPage directive has a serious flaw. Perhaps others out there have run into this and been as frustrated as I am and hopefully come up with some solution...? The flaw is that, if the response has already been committed, then the error page is just plopped into the response where the error occurred - it has no way that I see of generating a fresh response with just the error page content. Then the problem is that, depending on where the original page died, the error page content may not get displayed if it's caught inside some HTML tag where the browser can't figure out how to render it. Just as an example of this which I've seen, say you have a select dropdown list populated from some List request attribute, so you output select and then go to iterate through the List. Now, say the List is null, and a NullPointerException is thrown, the errorPage content gets put into the response right after the select tag and the browser doesn't display it. (You can see it if you do View - Source, but this obviously defeats the purpose.) This is quite annoying, and I'm amazed that this mechanism still hasn't been improved. I searched for solutions to this, but the only thing I could really find was using another framework like Velocity which buffers the whole response and therefore can generate a completely different one if an exception occurs at any step of the way. Unfortunately, learning another framework just isn't in the cards. Does anyone know of a way, besides maybe making the buffer size really huge, to get around this problem? Would a Filter on the response help with this? How would something like that work? (Never written/used a Filter before) Thanks! -Jeff
tomcat and SAS
Hello all, does anyone have experience with making SAS spawner and tomcat. Installation was successful, the whole thing seems to be working, but out of blue tomcat starts hogging CPU (99%) and once restarted bunch of SAS spawner errors appear in the application log in windows event logger. Thanks for your help, Vlad Vladimer Shioshvili QRC Division of Macro International Inc. 7315 Wisconsin Avenue, Suite 400W Bethesda, MD 20814 Phone: (301) 657 3077 ext. 155 - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
I can't add wepapps - maybe wrong configuration
I installed jdk 1.4, apache2, tomcat got the latter 2 talking each other with the old method connector (on win2k local enviroment). Everything seems working as I can access the examples folder both with localhost 8000 and localhost 8080 than I made a folder hello in the webapps folder with a subdirectory WEB-INF and the relative web.xml file. But I keep getting the 404 - page not found error from both (tomcat actually redirects me to the proper error page). Really have no clue, if someone can help me I would greatly appreciate. ***maybe off topic, maybe not*** What is the standalone folder in the work folder meant for? sorry for these very newbie questions *** Best Regards
configuring JNDI for App-level auth
Hi, I have an account on a server running Tomcat 4.0.6 and am finally getting around to incorporating connection pooling into my app. At first I was going to use a home-brewed connection pooling class that I read in a book, then I discovered that there is support in Tomcat for the DBCP project's implementation, but then I found out that DBCP is for Tomcat 4.1.x or later, so I suppose I will try to use 4.0.6's Tyrex connection pooling system. I am also relatively new to JNDI concepts so please go easy on me. In reading the Tomcat JNDI Resource How-To, the example provided uses res-authContainer/res-auth to indicate that the Container should sign onto the Resource Manager on behalf of the application (using parameters from $CATALINA_HOME/conf/server.xml). However, I am curious how to specify connection parameters if I wish to use Application-level authorization, rather than Container-level. Erik - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
Tomcat 3.3.1a Install Windows 2000 Service
Is there a way to install Tomcat as a Windows Service? I downloded a zip file and there was no install program. How can I make Tomcat a windows service? - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
Re: Tomcat 3.3.1a Install Windows 2000 Service
The newer ones install that way by themselves. 4.1.18 is the latest released build. - Original Message - From: Kathleen Long kathleen.long@ To: tomcat-user@xx Sent: Friday, February 21, 2003 3:08 PM Subject: Tomcat 3.3.1a Install Windows 2000 Service Is there a way to install Tomcat as a Windows Service? I downloded a zip file and there was no install program. How can I make Tomcat a windows service? - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
making file case insensitive
is there a way to make tomcat serve html files regardless of the case of the file? ie Hello.html and hello.html will retrieve the same file. Peter - To unsubscribe, e-mail: tomcat-user-unsubscribe@xx For additional commands, e-mail: tomcat-user-help@xx
