Hi Again, Tomcat, in it's batch file, has it's own CLASSPATH. It creates a ClassLoader for each webapp. It used all jars in lib directory and the classes directory.
The problem you are seeing is that the ClassLoaders are in a tree structure. TOMCAT_CLASSLOADER WEBAPP_X_CLASSLOADER WEBAPP_Y_CLASSLOADER Take a look at the documentation for java.lang.ClassLoader for info on this. If a class A is loaded in WEBAPP_X_CLASSLOADER and it tries to load another class B (or resource) it first looks in WEBAPP_X_CLASSLOADERs classpath and then goes to the parent TOMCAT_CLASSLOADER. If B is not found in WEBAPP_X_CLASSLOADER, but is found in TOMCAT_CLASSLOADER and it then in turn tries to load another class or resource C it can only "see" TOMCAT_CLASSLOADER, so it does not have access to the WEBAPP_X_CLASSLOADER classpath. I think in your case: Servelt loaded in WEBAPP_X_CLASSLOADER XML file loaded in WEBAPP_X_CLASSLOADER XML parser loaded in TOMCAT_CLASSLOADER DTD searched for in TOMCAT_CLASSLOADER and not found. It probably makes sense to put the log4J.jar in the TOMCAT_CLASSLOADER's classpath... Is this clearer? Alan. -----Original Message----- From: Roland Berger [mailto:[EMAIL PROTECTED]] Sent: 20 November 2001 09:46 To: Tomcat Mailinglist Subject: TOMCAT does not set the CLASSPATH for my WebAPP Hi all As I understand from the Servlet specs. a Servlet Container like Tomcat should set the CLASSPATH for each webapp which is placed in %TOMCAT_HOME%/webapps. e.g. if I have placed a .jar file in %TOMCAT_HOME%/webapps/mywebapp/WEB-INF/lib/myjar.jar it should add to the CLASSPATH the path %TOMCAT_HOME%/webapps/mywebapp/WEB-INF/lib/myjar.jar . But Tomcat doesn't do that with me. I have checked the tomcat.bat startup script. Dynamic Classpath generation is only done for .jar's in %TOMCAT_HOME%/lib but not for each webapp. So, how, where and at what time in startup procedure does tomcat generate the CLASSPATH for each webapp?????? Thank's a lot for any help Roland -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]> -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>
