Re: Filter class not found problem
On 4/4/07, Frank W. Zammetti [EMAIL PROTECTED] wrote: As per my post last night, I discovered that the problem starts in 6.0.10... FWIW, I just installed 6.0.10 and dumped in a webapp of mine that uses a Filter as a front controller, and it works fine. I have both JAVA_HOME and JRE_HOME defined for convenience (so I can switch as I test/upgrade versions); right now it's Java 1.6.0-b105 as echo $JAVA_HOME /usr/local/jdk1.6.0 echo $JRE_HOME /usr/local/jdk1.6.0/jre So I'd say it's not a problem intrinsic to /all/ Filters... -- Hassan Schroeder [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: Filter class not found problem
On Wed, April 4, 2007 11:21 am, Hassan Schroeder wrote: FWIW, I just installed 6.0.10 and dumped in a webapp of mine that uses a Filter as a front controller, and it works fine. I have both JAVA_HOME and JRE_HOME defined for convenience (so I can switch as I test/upgrade versions); right now it's Java 1.6.0-b105 as echo $JAVA_HOME /usr/local/jdk1.6.0 echo $JRE_HOME /usr/local/jdk1.6.0/jre So I'd say it's not a problem intrinsic to /all/ Filters... Fair to say... I noticed your not under Windows, which is potentially a big difference... but in any case, if it was a problem with my filter itself, I wouldn't expect it to be working in 6.0.9 with the same environment otherwise... also note I didn't recompile it when moving between 6.0.9 and 6.0.10, so nothing weird going on there. I just don't get it. Ah well, I've burned enough cycles on it... I can happily continue my real work under 6.0.9, no problem, but if anyone has any other ideas I'm certainly interested in hearing them... like I said, I don't know if this is a Tomcat bug or not, but I certainly can't explain it :) Frank -- Hassan Schroeder [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] - 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: Filter class not found problem
On 4/2/07, Frank W. Zammetti [EMAIL PROTECTED] wrote: Hey folks... I'm having a real pain of a problem here... vital stats: JRE 1.6.0-b105 (JDK 6) Tomcat 6.0.10 Since you have installed the JRE and not the JDK, I suppose you must set the JRE_HOME environment variable, and remove the JAVA_HOME environment variable. On my installation of Tomcat 6.0.10 there is no CATALINA_HOME/common/lib , but there's only a CATALINA_HOME/lib folder which contains servlet-api.jar by default. So I recommend using the default folder structure that came with Tomcat 6.0.10 fresh install. It should be fine if you have servlet-api.jar which contains the javax.servlet.Filter class under k:\tomcat6010\lib\ For completeness, environment variables I have: CATALINA_HOME=k:\tomcat6010 JAVA_HOME=c:\java15 Path=c:\java15\bin;k:\tomcat6010\bin;x:\classes\apache-ant-1.7.0\bin ...NO classpath defined... I don't think there's any other relevant env vars. - 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: Filter class not found problem
I actually do have the JDK installed, my bad for not stating that clearly... I was just stating the JRE version that would be used by Tomcat, since the JRE of course comes with the JDK, but I wasn't clear... you do raise an intersting point though, I wonder if I have to specify JRE_HOME anyway? I can tell you that when I start Tomcat, it reports the JRE directory as c:\java15, exactly as I expect, so I kind of doubt that's it. FYI, I am in fact using the directory structure Tomcat had by default, which is CATALINA_HOME/lib, and servlet-api.jar is in there... I just tried creating CATALINA_HOME/common/lib because all the documentation I found online talks about that directory, and while I figured it was just documentation not having been updated for the latest version, I figured it was worth a try. Bottom line: I have it set up as you say, except for the JRE_HOME env var, which I tend to doubt will do it (will try when I get home tonight anyway), but I'm still stuck with the same problem. As another fact mixed in: I tried a simple test: I dropped to a command prompt and just tried to compile a simple filter on its own... it failed because none of the servlet API classes were in the classpath. This is good because it proves I don't have a servlet.jar floating around in the system classpath (I was still hoping the FAQ entry about a stray servlet-api.jar floating around might be right, but that would seem to indicate pretty strongly it isn't). Frank -- 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! On Tue, April 3, 2007 3:11 am, Rashmi Rubdi wrote: On 4/2/07, Frank W. Zammetti [EMAIL PROTECTED] wrote: Hey folks... I'm having a real pain of a problem here... vital stats: JRE 1.6.0-b105 (JDK 6) Tomcat 6.0.10 Since you have installed the JRE and not the JDK, I suppose you must set the JRE_HOME environment variable, and remove the JAVA_HOME environment variable. On my installation of Tomcat 6.0.10 there is no CATALINA_HOME/common/lib , but there's only a CATALINA_HOME/lib folder which contains servlet-api.jar by default. So I recommend using the default folder structure that came with Tomcat 6.0.10 fresh install. It should be fine if you have servlet-api.jar which contains the javax.servlet.Filter class under k:\tomcat6010\lib\ For completeness, environment variables I have: CATALINA_HOME=k:\tomcat6010 JAVA_HOME=c:\java15 Path=c:\java15\bin;k:\tomcat6010\bin;x:\classes\apache-ant-1.7.0\bin ...NO classpath defined... I don't think there's any other relevant env vars. - 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: Filter class not found problem (looks like a possible Tomcat bug)
I've managed to narrow this problem down quite a bit, and long and short of it is that the problem is specific to 6.0.10. I tried a number of versions in the 6.x branch including 6.0.0, 6.0.4, 6.0.8 and 6.0.9, and in all of them my webapp starts up just fine, no complaints about the Filter class, things work as expected. In 6.0.10 however, I get the complaint about the Filter class not found. I even went and re-downloaded the 6.0.10 bundle (just the plain zip version, not the installer) and the problem was present immediately after unzipping and copying my webapp over. Now, this of course may not be a bug... maybe there's simply something about 6.0.10 I don't know that I need to do, in fact I'm hoping and even expecting that to be the case, but it's certainly a possible bug too... can anyone think of anything that would tell us one way or another? Thanks! Frank Rashmi Rubdi wrote: On 4/2/07, Frank W. Zammetti [EMAIL PROTECTED] wrote: Hey folks... I'm having a real pain of a problem here... vital stats: JRE 1.6.0-b105 (JDK 6) Tomcat 6.0.10 Since you have installed the JRE and not the JDK, I suppose you must set the JRE_HOME environment variable, and remove the JAVA_HOME environment variable. On my installation of Tomcat 6.0.10 there is no CATALINA_HOME/common/lib , but there's only a CATALINA_HOME/lib folder which contains servlet-api.jar by default. So I recommend using the default folder structure that came with Tomcat 6.0.10 fresh install. It should be fine if you have servlet-api.jar which contains the javax.servlet.Filter class under k:\tomcat6010\lib\ For completeness, environment variables I have: CATALINA_HOME=k:\tomcat6010 JAVA_HOME=c:\java15 Path=c:\java15\bin;k:\tomcat6010\bin;x:\classes\apache-ant-1.7.0\bin ...NO classpath defined... I don't think there's any other relevant env vars. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- 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]
Re: Filter class not found problem
On 4/3/07, Frank W. Zammetti [EMAIL PROTECTED] wrote: I actually do have the JDK installed, my bad for not stating that clearly... If you have the full JDK installed then please set the JAVA_HOME environment variable to the JDK's root folder. Reasoning: If you look in catalina.bat , it says JAVA_HOME Must point at your Java Development Kit installation. Required to run the with the debug argument. I wonder if I have to specify JRE_HOME anyway? You can delete the JRE_HOME env variable, it defaults to JAVA_HOME if absent. so I kind of doubt that's it. I don't know much about Filters, but you may want to set the debug=true on the Context, just to see if you get more user-friendly exception messages in the log files. Usually the log files contain additional messages that give additional clues. FYI, I am in fact using the directory structure Tomcat had by default, which is CATALINA_HOME/lib, and servlet-api.jar is in there... I just tried creating CATALINA_HOME/common/lib because all the documentation I found online talks about that directory, and while I figured it was just documentation not having been updated for the latest version, I figured it was worth a try. I think it will be a while before the documents catch-up. I have Tomcat 6.0.1 , and everything is as it came with the default install - I have a few projects , I don't use Filters but I don't get any other exception message so far. As another fact mixed in: I tried a simple test: I dropped to a command prompt and just tried to compile a simple filter on its own... it failed because none of the servlet API classes were in the classpath. This is good because it proves I don't have a servlet.jar floating around in the system classpath (I was still hoping the FAQ entry about a stray servlet-api.jar floating around might be right, but that would seem to indicate pretty strongly it isn't). It is better to carefully examine the system wide classpath and remove unnecessary paths, if possible temporarily remove the classpath and see if the Filter classes could be located. An incomplete or incorrect system classpath does cause problems, it's better to not set the system wide classpath. -Rashmi - 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: Filter class not found problem
Hello Frank, It seems to me that the error is not so much about the Filter you want to load but the fact that it can't find the javax/servlet/Filter class which is (I think) supposed to be part of the servlet-api.jar ... I know you said that its bundled but try moving that jar around. Or at least crack open that jar in winzip or list the files using the jar command to make sure it really does have the javax.servlet.Filter class. On 4/1/07, Frank W. Zammetti [EMAIL PROTECTED] wrote: Hey folks... I'm having a real pain of a problem here... vital stats: JRE 1.6.0-b105 (JDK 6) Tomcat 6.0.10 I have a filter that compiles fine but will not initialize... error that appears on Tomcat startup: Apr 2, 2007 1:04:38 AM org.apache.catalina.core.StandardContextfilterStart SEVERE: Exception starting filter MasterControlFilter java.lang.NoClassDefFoundError: javax/servlet/Filter at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass( SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) ...and so on... The filter is contained within a JAR in my webapp's WEB-INF/lib directory. I've verified the filter is in the correct package, and that web.xml specifies the correct class name. I've spent about an hour Googling, and I've found numerous references to seemingly similar problems, but no answers... I've verified that there is no other servlet-api.jar floating around... I did notice a number of places that said servlet-api.jar should be in CATALINA_HOME/common/lib, but it's in CATALINA_HOME/lib in my installation (that's how it came out of the distro)... I assume that's just some old documentation I'm finding, but maybe not? For completeness, environment variables I have: CATALINA_HOME=k:\tomcat6010 JAVA_HOME=c:\java15 Path=c:\java15\bin;k:\tomcat6010\bin;x:\classes\apache-ant-1.7.0\bin ...NO classpath defined... I don't think there's any other relevant env vars. Can anyone point me in the right direction? I'm pretty well stuck at the moment until I get this resolved. Thanks! Frank -- 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]
Re: Filter class not found problem
Yes I agree, that's what I thought the problem was too, I was just working through eliminating any problems on my part (which is probably still the cause, but seemingly in a less than obvious way now)... I confirmed the Filter class is in servlet-api.jar, and it's in javax/servlet... I also moved that JAR to CATALINA_HOME/common/lib and noted that now Tomcat won't even start, so clearly it's using that JAR when it's in CATALINA_HOME/lib where it was originally. I'm at a loss on this one... any other ideas out there? This is my first time using the newer JDK and the newer Tomcat... is there anything more one has to do nowadays besides put an exploded webapp in CATALINA_HOME/webapps? Could this be some funky classloader issue somehow? Thanks! Frank Pulkit Singhal wrote: Hello Frank, It seems to me that the error is not so much about the Filter you want to load but the fact that it can't find the javax/servlet/Filter class which is (I think) supposed to be part of the servlet-api.jar ... I know you said that its bundled but try moving that jar around. Or at least crack open that jar in winzip or list the files using the jar command to make sure it really does have the javax.servlet.Filter class. On 4/1/07, Frank W. Zammetti [EMAIL PROTECTED] wrote: Hey folks... I'm having a real pain of a problem here... vital stats: JRE 1.6.0-b105 (JDK 6) Tomcat 6.0.10 I have a filter that compiles fine but will not initialize... error that appears on Tomcat startup: Apr 2, 2007 1:04:38 AM org.apache.catalina.core.StandardContextfilterStart SEVERE: Exception starting filter MasterControlFilter java.lang.NoClassDefFoundError: javax/servlet/Filter at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass( SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) ...and so on... The filter is contained within a JAR in my webapp's WEB-INF/lib directory. I've verified the filter is in the correct package, and that web.xml specifies the correct class name. I've spent about an hour Googling, and I've found numerous references to seemingly similar problems, but no answers... I've verified that there is no other servlet-api.jar floating around... I did notice a number of places that said servlet-api.jar should be in CATALINA_HOME/common/lib, but it's in CATALINA_HOME/lib in my installation (that's how it came out of the distro)... I assume that's just some old documentation I'm finding, but maybe not? For completeness, environment variables I have: CATALINA_HOME=k:\tomcat6010 JAVA_HOME=c:\java15 Path=c:\java15\bin;k:\tomcat6010\bin;x:\classes\apache-ant-1.7.0\bin ...NO classpath defined... I don't think there's any other relevant env vars. Can anyone point me in the right direction? I'm pretty well stuck at the moment until I get this resolved. Thanks! Frank -- 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] -- 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]
