Error deploying Cocoon 2.1.11 on WebLogic 10.3.5

Question

Deploying Cocoon 2.1.11 as downloaded from cocoon.apache.org with no changes and getting the following error
<21-Feb-2012 16:23:57 o'clock GMT> <Error> <Deployer> <BEA-149231> <Unable to set the activation state to true for the a
pplication 'cocoon'.
weblogic.application.ModuleException: [HTTP:101216]Servlet: "Cocoon" failed to preload on startup in Web application: "c
ocoon.war".
java.lang.NoSuchMethodError: org.apache.log.output.ServletOutputLogTarget.<init>(Ljavax/servlet/ServletContext;Lorg/apac
he/log/format/Formatter;)V
        at org.apache.cocoon.servlet.CocoonServlet.initLogger(CocoonServlet.java:800)
        at org.apache.cocoon.servlet.CocoonServlet.init(CocoonServlet.java:356)
        at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:283)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
        at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:64)
        at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
        at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
        at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:539)
        at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1985)
        at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1959)
        at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1878)
        at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3153)
        at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1508)
        at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:482)
        at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425)
        at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
        at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
        at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)
        at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:247)
        at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425)
        at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
        at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
        at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:27)
        at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:636)
        at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
        at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:205)
        at weblogic.application.internal.SingleModuleDeployment.activate(SingleModuleDeployment.java:43)
        at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161)
        at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
        at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:184)
        at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:361)
        at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:51)
        at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:200)
        at weblogic.management.deploy.internal.AppTransition$2.transitionApp(AppTransition.java:30)
        at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:240)
        at weblogic.management.deploy.internal.ConfiguredDeployments.activate(ConfiguredDeployments.java:169)
        at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:123)
        at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:180)
        at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:96)
        at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
        at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1510)
        at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:482)
        at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425)
        at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
        at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
        Truncated. see log file for complete stacktrace
Caused By: java.lang.NoSuchMethodError: org.apache.log.output.ServletOutputLogTarget.<init>(Ljavax/servlet/ServletContex
t;Lorg/apache/log/format/Formatter;)V
        at org.apache.cocoon.servlet.CocoonServlet.initLogger(CocoonServlet.java:800)
        at org.apache.cocoon.servlet.CocoonServlet.init(CocoonServlet.java:356)
        at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:283)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
        Truncated. see log file for complete stacktraceIt's a problem with WLS as the same war works under Jetty. Any ideas?
Chris

Answer 1

The error you are showing indicates that WLS does provide a version of Apache Logging Library, but it's not the same version that cocoon is built with and using:
java.lang.NoSuchMethodError: org.apache.log.output.ServletOutputLogTarget.<init>(Ljavax/servlet/ServletContext;Lorg/apac
he/log/format/Formatter;)V
        at org.apache.cocoon.servlet.CocoonServlet.initLogger(CocoonServlet.java:800)In order to reconcile this, you simply need to provide a filtering classloader configuration for your application so that classes from the " org.apache.log.*" package are loaded from the web classloader and not from the WLS system classloader.
The documentation (this is 12c but available on 10.3.5) for the configuration element is here:
http://docs.oracle.com/cd/E24329_01/web.1211/e21049/weblogic_xml.htm#sthref278
You'd create a weblogic.xml file with the configuration below and put it in the WEB-INF directory of your web application (adjacent to web.xml):
<weblogic-web-app>
     <container-descriptor>
         <prefer-application-packages>
             <package-name>org.apache.log</package-name>
         </prefer-application-packages>
     </container-descriptor>
</weblogic-web-app>-steve-
Edited by: Steve Button on Feb 27, 2012 10:42 AM