Re: TomCat Does not recognize my servelt
why did you have to misspell the word servlet anyway? Before u can get any help with your problem you must spell the subject of your e-mail correctly. - Original Message - From: Mark Thomas [EMAIL PROTECTED] To: Tomcat Users List users@tomcat.apache.org Sent: Sunday, March 02, 2008 4:28 PM Subject: Re: TomCat Does not recognize my servelt Ash B wrote: But tomcat does not recognize my servlet TestDBTimeExample Any help will be appreciated. As per the servlet spec, your class *must* be in a package. Mark - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Configuring tomcat, servlet not found error
hi. you say that you added the servlet/servlet tag to the * bottom * of your Deployment Descriptor file, the web.xml. Now I hope that you know -- u should know -- that that it is the very * first * thing contained in a web.xml file and you also need the servlet-mapping tag right under that. It contains the servlet-name and the url-pattern tags. Hope that that helps you to fly right with trying to get the servlet viewed in Tomcat. - Original Message - From: cuco2772 [EMAIL PROTECTED] To: users@tomcat.apache.org Sent: Wednesday, December 19, 2007 3:43 PM Subject: Configuring tomcat, servlet not found error I keep getting this error: 'The requested resource (/servlet/HelloServlet) is not available'. (404) The servlet is not getting located by tomcat for some reason. This happens when I go to localhost:8080/servlet/HelloServlet. The servlet engine is running, tomcat is running. I did this: javac -classpath /usr/local/tomcat/apache-tomcat-6.0.14/lib/servlet-api.jar HelloServlet.java and I was able to at least compile the servlet into a .class file. If you have tomcat installed, there should be an html document on how to configure it somewhere like here : file:///usr/local/tomcat/apache-tomcat-6.0.14/webapps/docs/config/server.html I've been studying this document trying to figure out what I need to do, but so far to no avail. I added the folowing Context element to my context.xml, located in $CATALINA_HOME/conf: Context path= docBase=webapps/ROOT debug=0 reloadable=true crossContext=true /Context My HelloServlet.class is located in .../webapps/ROOT/WEB-INF/classes In addition I added the following element to the bottom of my /webapps/ROOT/WEB-INF/web.xml to try to provide some sort of servlet mapping, I think: servlet servlet-nameHelloWorld/servlet-name servlet-classHelloWorld/servlet-class /servlet I got this info mostly from doing Google research, so I dont know how well this applies. The only thing I can think of at this point is maybe I need to set my java -classpath also, but attempts to set it to my .../classes directory fail. I'm not sure exactly what it needs to be set to, and if you have to provide a .class filename every time. Could anybody help clarify some of this ? Thanx -- View this message in context: http://www.nabble.com/Configuring-tomcat%2C-servlet-not-found-error-tp14425976p14425976.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to increate memory resonably with Tomcat6, java 1.6..system: winxp , help appreciated.
well what exactly is your problem anyway? U have just said : i m tomcat newer please be more specific!! - Original Message - From: Rashmi Rubdi [EMAIL PROTECTED] To: Tomcat Users List users@tomcat.apache.org Sent: Sunday, March 18, 2007 12:32 PM Subject: Re: How to increate memory resonably with Tomcat6, java 1.6..system: winxp , help appreciated. This has some tips on JDK 1.4 - may be different for JavaSE6 http://tomcat.apache.org/articles/performance.pdf - Original Message From: James liu [EMAIL PROTECTED] To: Tomcat Users List users@tomcat.apache.org Sent: Sunday, March 18, 2007 3:56:52 AM Subject: How to increate memory resonably with Tomcat6, java 1.6..system: winxp , help appreciated. i m tomcat newer. -- regards jl The fish are biting. Get more visitors on your site using Yahoo! Search Marketing. http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: problem starting Tomcat
well boris what with this java exception in the server error msg. : java.lang.ClassNotFoundException you must not have placed/put the 2 jar files, servlet-api.jar and jsp-api.jar into your system's classpath yet. Goykhman, Boris wrote: Hi I have just installed Tomcat 5.0.28 on my XP machine and I am having trouble starting it. Here's the output that Catalina.bat produces: Using CATALINA_BASE: C:\jakarta-tomcat-5.0.28 Using CATALINA_HOME: C:\jakarta-tomcat-5.0.28 Using CATALINA_TMPDIR: C:\jakarta-tomcat-5.0.28\temp Using JAVA_HOME: C:\j2sdk1.4.2_11 C:\j2sdk1.4.2_11\bin\java -Djava.endorsed.dirs=C:\jakarta-tomcat-5.0.28\c ommon\endorsed -classpath C:\j2sdk1.4.2_11\lib\tools.jar;C:\jakarta-tomcat-5.0 .28\bin\bootstrap.jar -Dcatalina.base=C:\jakarta-tomcat-5.0.28 -Dcatalina.hom e=C:\jakarta-tomcat-5.0.28 -Djava.io.tmpdir=C:\jakarta-tomcat-5.0.28\temp or g.apache.catalina.startup.Bootstrap start java.lang.ClassNotFoundException: org.apache.catalina.startup.Catalina at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClas sLoader.java:854) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClas sLoader.java:721) at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:205) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:402) Because of corporate user restrictions, I cannot modify Path environment variable. It should not matter though because it's trying to use java executable directly from JDK installation folder. It looks like it cannot find C:\jakarta-tomcat-5.0.28 folder even though that's where Tomcat files are. I would appreciate any help. Thanks *The information contained in this e-mail and any attachments may be confidential and/or proprietary. If you are not an intended recipient or an authorized agent of an intended recipient, you are hereby notified that any dissemination, distribution or copying of this e-mail is strictly prohibited. If you have received this e-mail in error, please notify the sender by replying to this message and permanently delete the e-mail and any attachments immediately. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How do I ........?
just a tiny correction for you Chris, and that is that the code ought to
be if(in = = null) not as u had it if(null = = in). Am I right or not?
Christopher Schultz wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Steve,
Steve R Burrus wrote:
hi chris this is steve Burrus and the line of code in question is the
while loop : while( ( r = in.read(by)) != -1) { the server error for a
long time has always pointed to that line of code creating the NPE.
Yup, that's the first time you use the InputStream after attempting to
load your file. It's pretty simple to check for null: just use the code
I suggested in my last message:
Correct me if I'm wrong, but this generally checks for null:
if(null == in)
// handle the null condition
Now, it's up to you what you want to do in the event of a NULL image.
You could either return a 404 Not Found error status, or return a
known good image that actually says ERROR on it.
- -chris
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iD8DBQFFWM4Y9CaO5/Lv0PARArEgAKC8p+909qemHgpbGFmO5Fooh8AWcACeLF29
ajQlvN1B+YLbdmoKa+TFoyM=
=G5GE
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Re: How do I ........?
hi chris this is steve Burrus and the line of code in question is the
while loop : while( ( r = in.read(by)) != -1) { the server error for a
long time has always pointed to that line of code creating the NPE.
Christopher Schultz wrote:
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Hash: SHA1
Steve,
Steve R Burrus wrote:
here is the entire code for the image servlet which I seem to be
repeatedly getting that NullPointerException java exception. Any ideas
what the problem is ? :
What line of code does the NPE show? Please give us the line of code and
not just the line number.
I'm guessing that your JPG file is not being found, so
sc.getResourceAsStream is returning null.
Correct me if I'm wrong, but this generally checks for null:
if(null == in)
// handle the null condition
Is there something that I'm not getting??!
- -chris
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ps01WACr5sV+hluXp2s4mgU=
=SfP5
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How do I ........?
I know that this question of mine has been asked/answered in this group, but I was wondering how do I go about checking for a null value? I feel the need to do this in a servlet file that incorporates an image into it. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How do I ........?
here is the entire code for the image servlet which I seem to be
repeatedly getting that NullPointerException java exception. Any ideas
what the problem is ? :
package coreservlets;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Image_File extends HttpServlet {
public void doGet( HttpServletRequest rq, HttpServletResponse rp )
throws
ServletException,
IOException {
rp.setContentType( image/jpeg );
ServletContext sc = getServletContext ();
InputStream in = sc.getResourceAsStream(/Sexy_Laundry_Girl!.JPG);
int r = 0;
byte[] by = new byte[4096];
OutputStream os = rp.getOutputStream();
while( ( r = in.read(by)) != -1) {
// if (r in= null)
os.write(by, 0, r);
}
os.flush();
os.close() ;
}
}
Martin Gainty wrote:
you can always wrap your accesor in a simple try/catch block as in
try
{
Image logo=null;
logo = Toolkit.getDefaultToolkit().getImage(images/splash.png);
}
catch(NullPointerException excp)
{
log.debug(NullPointerException thrown while retreiving image
images/splash.png);
System.out.println(NullPointerException thrown while retrieving
images/splash.png);
}
Anyone else?
M-
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contents
- Original Message -
From: Steve R Burrus [EMAIL PROTECTED]
To: users@tomcat.apache.org
Sent: Sunday, November 12, 2006 5:52 PM
Subject: How do I ?
I know that this question of mine has been asked/answered in this
group, but I was wondering how do I go about checking for a null value?
I feel the need to do this in a servlet file that incorporates an image
into it.
-
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Re: Apache Tomcat\Windows XP\page not found error
you might also try, in addition to of course setting the env. variable JAVA_HOME correctly, to point your PATH to the bin folder of your Tomcat installation and put both the servlet-api.jar and the jsp-api.jar into the CLASSPATH env. variable. Hope that helps you. Frank J Murray wrote: Hello, This is a new post, and I am a newbie (at least to Apache Tomcat on Windows). I went to the Apache.org website and downloaded and installed the Windows executable under Core distributions, i.e., Core: a.. zip (pgp, md5) b.. tar.gz (pgp, md5) c.. Windows Executable (pgp, md5) The install went fine, but when I try to start Apache Tomcat, it just gives me the standard error message, unable to connect. This happens even after I start the Apache service known as Configure Tomcat within the Apache Tomcat folder (or directory). I'm guessing I need to install one or two other important files or apps, as well as do some configuring, similar to setting JAVA_HOME, and executing (./ in Unix) the startup file (or .bat) in Windows. Any information is appreciated. Thanks. fjm - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: how to use tomcat libraries
Michele my gut feeling initially is that you certainly cannot fail to put them into the lib folder of your web app. but I could be wrong I don't know! There is a lot about Tomcat that I really don't know about. Michele Mazzucco wrote: Hi all, how can I use the tomcat libraries (i.e. the ones in $CATALINA_HOME/server/lib) without putting them in 'lib' of my web application? Thanks, Michele - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Need Help w. Servlets And The JDBC.
I don't suppose that on the Tomcat site there is a Type 4 database driver , which I have read is the preferred driver to get because it is pure Java, is there instead of the 1 which I assume I can always get at java.sun.com? Sameer Acharya wrote: You can configure a tomcat datasource to get a connection or you can load your database driver and get a connection object. The advantage with using tomcat datasource is that it will handle connection pooling for you. The tomcat docs explain how to define a datasource (you have to do it in context.xml) , also you will need the JDBC drivers for whatever database you are connecting to. -Sameer --- Steve R Burrus [EMAIL PROTECTED] wrote: Hi all. I am an admitted newbie when it comes to using a database connection for a servlet to access. So can someone please tell me the basics about how exactly I should go about doing this?? I have been very much stumped about how I should do this for quite a long time now! I just know that I should use 1 of 3 getConnection( ) methods to start to do this and create a Connection object but little else. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Need Help w. Servlets And The JDBC.
Well this Microsoft SQL Server 2005 JDBC Driver. is it a Type 4 pure Java driver or not?? I should think that anything from Microsoft would tend to kind of de-emphasize Java. Henry McClain wrote: I am currently using the Microsoft SQL Server 2005 JDBC Driver. It is free. If you need to connect to a SQL Server 2000 or 2005, this is a good driver. On 9/21/06, Caldarale, Charles R [EMAIL PROTECTED] wrote: From: Steve R Burrus [mailto:[EMAIL PROTECTED] Subject: Re: Need Help w. Servlets And The JDBC. I don't suppose that on the Tomcat site there is a Type 4 database driver , which I have read is the preferred driver to get because it is pure Java, is there instead of the 1 which I assume I can always get at java.sun.com? Your assumptions are incorrect. Each data base vendor must supply an appropriate JDBC driver, hopefully a type 4 (pure Java) version. There is no generic, all purpose JDBC driver. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Need Help w. Servlets And The JDBC.
Hi all. I am an admitted newbie when it comes to using a database connection for a servlet to access. So can someone please tell me the basics about how exactly I should go about doing this?? I have been very much stumped about how I should do this for quite a long time now! I just know that I should use 1 of 3 getConnection( ) methods to start to do this and create a Connection object but little else. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Too many problems. Need help.
Kevin you need to submit please your Deployment Descrtiptor file, i.e., the web.xml, for the I assume a servlet kind of a web application! Yeah you are right about the server error msg., it never indicates exactly which line in that file has a problem in it. Kevin Mullin wrote: I just installed Tomcat 5.5.17 onto my IBM mainframe system, running operating system z/OS 1.7. I'm getting numerous problems with JCL that I obtained from JZOS which is purported to start tomcat, but I am getting numerous failures that I would appreciate some help on. The first is: . . . Sep 18, 2006 7:12:56 PM org.apache.tomcat.util.digester.Digester endElement SEVERE: End event threw exception java.lang.reflect.InvocationTargetException . much java stack tracing stuff. . Caused by: java.lang.IllegalArgumentException: Servlet mapping specifies an Caused by unknown servlet name CompressionFilterTestServlet I don't have a clue what this is talking about. The next error is: SEVERE: Parse error in application web.xml file at jndi:/localhost/jsp-examplesWEB-INF/web.xml Now jsp-examples cam with tomcat, so I would expect it to not have any problems. But the above error would seem to indicate a parsing error of the xml file itself. The next error is: SEVERE: Occurred at line 561 column 23 Not sure what file it is talking about here. It's not clear from the surround log messages. Perhaps it would be best to send whoever out there who is interested in helping me the complete log file with all of the run time messages from tomcat. . . . Kevin Mullin Sr. Analyst IBM Corporation (206) 345-7068 [EMAIL PROTECTED] http://www.ibm.com/ibm/values/
Re: jsvc + Tomcat vs Apache + Tomcat
I am sorry but I need to know what exactly this jsvc technolology is?? I have frankly never heard of it ever before. I await your anticipated response. Greg Johnson wrote: If I put Apache in front of Tomcat, can I run Tomcat on port 8080, yet have Apache serve the content on port 80? My production web server is currently running standalone Tomcat on Linux. I chose to use jsvc to serve the content on port 80. For the most part, jsvc works, but it has a few problems. Occasionally Tomcat won't stop when I shut it down. (I have to resort to killing the process by hand.) It doesn't happen often...but often enough to bug me. Also, using jsvc makes it so that I can't deploy web apps via ant. Can't figure out my way around that. So, is Apache in front of Tomcat my solution? (I'd like to get rid of jsvc and also be able to deploy via ant.) If the right answer for me is to use both Tomcat and Apache, do I need to reconfigure my SSL certificates with Apache, or can I leave them with Tomcat? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: decompiling classes
Me thinks that Mr. Nicholas Irving is talking a bit tongue-in-cheek what with his 2 consecutive posts mentioning some money! You all agree? Filip Hanik - Dev Lists wrote: gee, this is so BS, you don't have to go through all that effort. download all the source in a single package from http://tomcat.apache.org/download-55.cgi don't pay anyone for decompilation instructions, for open source, you can always get the source, for closed source its illegal anyway. Filip Nicholas Irving wrote: That is too much hard work, whenever I want to look @ the source for a class I just decompile and it gte me a 100% accurate copy, no need to hit the Internet to get the source I already have on my desktop. For an extra $5 I will throw in the How to view Java Source within Eclispe PDF. NIrving On 07/09/06, Frank W. Zammetti [EMAIL PROTECTED] wrote: Umm, the command to decompile Tomcat's classes is this: http://tomcat.apache.org/svn.html ;) Frank Nicholas Irving wrote: I know the software you mean, it is completely free, but I have a guide that I can sell to you for $19.95 that tells you where to download it from and contains commonly available documentation convert into a PDF for you to read. So you want my PayPal account so that you can deposit the money and then enjoy the world of decompiling java classes. NIrving On 08/09/06, Propes, Barry L [EMAIL PROTECTED] wrote: what's the command again for decompiling Tomcat's classes? Or was there special software needed to do so? -- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com AIM/Yahoo: fzammetti MSN: [EMAIL PROTECTED] Author of Practical Ajax Projects With Java Technology (2006, Apress, ISBN 1-59059-695-1) Java Web Parts - http://javawebparts.sourceforge.net Supplying the wheel, so you don't have to reinvent it! - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.12.1/440 - Release Date: 9/6/2006 - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat startup error
Socio_pal I might suggest that you maybe see that all of your env. variables are set correctly especially the classpath since you are getting the java.lang.ClassNotFoundException Java exception. socio_pal wrote: I am new to tomcat and I am using tomcat version 5.5.16. After deplying the tar files in tomcat, I tried to start it using startup.sh and it throws me the following error: SEVERE: Begin event threw exception java.lang.ClassNotFoundException: org.apache.catalina.logger.FileLogger at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:204) at org.apache.tomcat.util.digester.Rule.begin(Rule.java:152) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1275) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:533) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:220) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImp Could anyone please tell me where the problem would be. I need an answer ASAP, please. Thanks, socio - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Ang. Need Help w. Null Pointer Exception.
yes the while loop is on line number 19 okay. Please forgive me for my ignorance about this, but I was wondering how I should go about doing that check for a non-null value?? [EMAIL PROTECTED] wrote: Is the while... line number 19? If so make atest that is != null before you continue. Regards Nils-Olov Fransson - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Need Help w. A UnsupportedClassVersionError.
I was trying to see a simple servlet when I got the following server error! What does that mean, a UnsupportedClassVersionError and how do I go about fixing this problem in hopefully the quickest way possible?? HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error allocating a servlet instance com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:73) com.sun.enterprise.web.VirtualServerPipeline.invoke(VirtualServerPipeline.java:120) org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:231) com.sun.enterprise.web.connector.grizzly.ProcessorTask.invokeAdapter(ProcessorTask.java:667) com.sun.enterprise.web.connector.grizzly.ProcessorTask.processNonBlocked(ProcessorTask.java:574) com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:844) com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:287) com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:212) com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:252) com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:75) root cause java.lang.UnsupportedClassVersionError: Bad version number in .class file java.lang.ClassLoader.defineClass1(Native Method) java.lang.ClassLoader.defineClass(ClassLoader.java:620) java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1955) org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:945) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1411) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1275) com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:73) com.sun.enterprise.web.VirtualServerPipeline.invoke(VirtualServerPipeline.java:120) org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:231) com.sun.enterprise.web.connector.grizzly.ProcessorTask.invokeAdapter(ProcessorTask.java:667) com.sun.enterprise.web.connector.grizzly.ProcessorTask.processNonBlocked(ProcessorTask.java:574) com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:844) com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:287) com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:212) com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:252) com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:75)
Need Help w. Null Pointer Exception.
I need some pretty immediate help/assistance with always getting a
NullPointerException Java exception when I try to view a particular
image in my favorite web browser!!! The line of text in my servlet file
which is, I think, problemmatic is a while loop. Well here is my entire
servlet file for someone to take a look at to hopefully help me with
this problem.
package org.stephen.burris;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class One_More_Time extends HttpServlet {
public void doGet(HttpServletRequest rq, HttpServletResponse rp )
throws
ServletException, IOException {
rp.setContentType( image/jpeg );
ServletContext sc = getServletContext ();
InputStream is = sc.getResourceAsStream(/pamandersonnaked.jpeg);
int read = 0;
byte [] bytes = new byte[ 1024 ];
OutputStream os = rp.getOutputStream ();
while ((read = is.read(bytes)) != -1) {
os.write( bytes, 0, read);
}
os.flush();
os.close();
}
}
And the server error :
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception
java.lang.NullPointerException
org.stephen.burris.One_More_Time.doGet(One_More_Time.java:19)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache
Tomcat/5.5.17 logs.
Apache Tomcat/5.5.17
Re. FileInputStream Class.
Hi all. I was just wondering what were the methods that I should be using with the FileInputStream Class to be able to see/view an image in a servlet??
how to use the mod_jk2?
hi I have ocassionally gotten/obtained the Apache http server to supposedly use with tomcat. I say supposedly because I have never been able to even start to connect the 2 servers thru the mod_jk2! Can someone please walk me through the whole procedure for doing this? Much thanx to anyone who can help me with this long time problem. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: how to use the mod_jk2?
Okay you are right. So how do I go about setting up the mod_jk to be the connector between Tomcat and the Apache HTTP Server anyway? Mark Thomas wrote: Steve R Burrus wrote: hi I have ocassionally gotten/obtained the Apache http server to supposedly use with tomcat. I say supposedly because I have never been able to even start to connect the 2 servers thru the mod_jk2! Can someone please walk me through the whole procedure for doing this? Much thanx to anyone who can help me with this long time problem. Are you aware that mod_jk2 is deprecated and the mod_proxy_ajp and mod_jk are the currently supported methods of doing this? Mark - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Crashed - Please Help.
I assume that you have an entry in your System's classpath settings for every single jar file that the error indicates were not found for your jvm? Uday Bhaskar wrote: Hi, When I start tomcat following is th error message: Starting tomcat5: /usr/bin/rebuild-jar-repository: error: could not find jdbc-stdext Java extension for this JVM /usr/bin/rebuild-jar-repository: error: could not find jndi Java extension for this JVM /usr/bin/rebuild-jar-repository: error: All detected jars were not found for this jvm /usr/bin/rebuild-jar-repository: error: could not find jaas Java extension for this JVM /usr/bin/rebuild-jar-repository: error: All detected jars were not found for this jvm [ OK ] I did not made any changes on SDK (new installations etc). when I say # sudo /usr/sbin/alternatives --config java Selection Command --- 1 /usr/share/java/libgcj-java-placeholder.sh 2 /usr/lib/jvm/java-1.4.2-ibm-1.4.2.0/jre/bin/java 3 /usr/lib/jvm/java-1.4.2-ibm-1.4.2.2/jre/bin/java *+ 4 /usr/lib/jvm/java-1.4.2-ibm-1.4.2.3/jre/bin/java And when I say, $ java -version java version 1.4.2_06 Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_06-b03) Java HotSpot(TM) Client VM (build 1.4.2_06-b03, mixed mode) Tomcat log : Bootstrap: Class loader creation threw exception java.lang.IllegalArgumentException: addRepositoryInternal at org.apache.catalina.loader.StandardClassLoader.addRepositoryInternal(StandardClassLoader.java:957) at org.apache.catalina.loader.StandardClassLoader.init(StandardClassLoader.java:153) at org.apache.catalina.startup.ClassLoaderFactory.createClassLoader(ClassLoaderFactory.java:207) at org.apache.catalina.startup.Bootstrap.createClassLoader(Bootstrap.java:163) at org.apache.catalina.startup.Bootstrap.initClassLoaders(Bootstrap.java:104) at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:196) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:402) Caused by: java.util.zip.ZipException: No such file or directory at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.init(ZipFile.java:112) at java.util.jar.JarFile.init(JarFile.java:127) at java.util.jar.JarFile.init(JarFile.java:65) at org.apache.catalina.loader.StandardClassLoader.addRepositoryInternal(StandardClassLoader.java:944) ... 6 more Can anyone help me. -- Uday Bhaskar, Sr. Programmer, Olive Technology. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: NullPointerException
Please forgive my rather dumb naivete but what exactly is OpenEdit supposed to be anyway? I don't believe that I have ever heard of it before!! Antonio F. Tornisiello wrote: Hi, I'm facing a very strange problem trying to install OpenEdit as a WAR archive. If I extract it under the main server webapps directory, it works fine. But the application is for only one customer, so I need to get it working under a virtual website. It's a Windows box (Yes, I hate it too ;-) ) running Plesk with Tomcat and JRE 1.5. Using the Plesk interface, installing WAR archives is very simple. When I try to install the OpenEdit WAR archive under any user account/virtual site, I get the following error (From TomCat's log): INFO: Deploying web application archive cms.war Aug 14, 2006 12:56:56 PM org.apache.catalina.core.ApplicationContext log SEVERE: Exception starting filter OEFilter java.lang.NullPointerException at java.io.File.init(Unknown Source) at com.openedit.servlet.OpenEditFilter.init(OpenEditFilter.java:85) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:225) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:308) at org.apache.catalina.core.ApplicationFilterConfig.init(ApplicationFilterConfig.java:79) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3502) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4071) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:755) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:777) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:672) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:472) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1142) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:292) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1293) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1553) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1562) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1542) at java.lang.Thread.run(Unknown Source) Tracing back the problem, I guess it is related to this: String rootPath = servletContext.getRealPath(/); BaseWebServer server = new BaseWebServer(); server.setRootDirectory(new File(rootPath));== LINE 85 Looks like under a virtual host, getRealPath(/) is returning NULL, so when the variable is used on LINE 85 the exception is raised. These lines comes from a compiled .class archive, so changing the code is somehow out of question. Is there anything that I can try to do in the TomCat's configuration files to get it working, without having to try to decompile and recompile the code ? Thanks in advance, Antonio - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re. Tomcat v. 5.5.17
Hello all. I have been having/encountering some difficulties in being able to activate the 5.5.17 version of the Tomcat server! Now at the top of the DOS window it is indicated that I don't have the proper Library path installed for Tomcat activation. Here is part of the error message : INFO: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: Now what could the problem be? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
