Deployment Problem related to filter, struts and log4j on BEA WLS 8.1 SP4

Question

Hi to All,
I have a web application that uses struts 1.1, log4j, axis, filter vs. I have used WLS 8.1 SP4 for 10 months with my application without any problem. But yesterday I can not deploy application, I get the following errors;
<pre>
java.lang.NullPointerException
     at weblogic.servlet.internal.WebAppServletContext.destroyFilters(WebAppServletContext.java:6111)
     at weblogic.servlet.internal.WebAppServletContext.destroy(WebAppServletContext.java:5999)
     at weblogic.servlet.internal.ServletContextManager.destroyContext(ServletContextManager.java:196)
     at weblogic.servlet.internal.HttpServer.unloadWebApp(HttpServer.java:777)
     at weblogic.servlet.internal.WebAppModule.destroyContexts(WebAppModule.java:761)
     at weblogic.servlet.internal.WebAppModule.rollback(WebAppModule.java:739)
</pre>
I research the exception and get some information; duplicate JAR file on classpath or missing JAR file. But i have another application that have two different log4j jar file, commons logging jar file in its web-inf/lib folder. And this application can be deployed without any problem. When I remove filter definition from web.xml, I get following error;
<pre>
- Begin event threw exception
java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
Caused by: java.lang.NoClassDefFoundError: org/apache/struts/validator/ValidatorForm
     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
<Jun 2, 2006 4:28:54 PM EEST> <Error> <HTTP> <BEA-101216> <Servlet: "action" failed to preload on startup in Web application: "deneme".
javax.servlet.UnavailableException: Parsing error processing resource path
     at org.apache.struts.action.ActionServlet.handleConfigException(ActionServlet.java:1035)
     at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:1014)
     at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:955)
<Jun 2, 2006 4:28:54 PM EEST> <Error> <HTTP> <BEA-101216> <Servlet: "init" failed to preload on startup in Web application: "deneme".
javax.servlet.ServletException: org/apache/log4j/Logger
     at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:919)
     at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:883)
     at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:822)
</pre>
I can not find a solution, anyone can help me?
Thanks for answers.
Message was edited by:
mucahitkurt

Answer 1

Hi,
It seems to be some of the files did not sign in the jar that may be cause for this type of error.
Make sure that whether all files were signed or not in jar.
Regards
Anilkumar kari