Thursday, December 20, 2012

Problem while deploying Oracle ADF application - java.lang.ClassNotFoundException: oracle.adf.library.webapp.ResourceServlet

Problem while deploying Oracle ADF application - java.lang.ClassNotFoundException: oracle.adf.library.webapp.ResourceServlet


Sometimes we may receive the following exception while deploying the Oracle ADF application to the server.

weblogic.application.ModuleException: Failed to load webapp: 'BAPReport.war'
        at weblogic.servlet.internal.WebAppModule.prepare(WebAppModule.java:395)
        at weblogic.application.internal.flow.ScopedModuleDriver.prepare(ScopedModuleDriver.java:176)
        at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:199)
        at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:517)
        at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
        Truncated. see log file for complete stacktrace
Caused By: java.lang.ClassNotFoundException: oracle.adf.library.webapp.ResourceServlet
        at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:297)
        at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270)
        at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:64)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
        Truncated. see log file for complete stacktrace
The issue is the oracle.adf.library.webapp.ResourceServlet class is missing in the class path.This issue can be resolved by deploying the application as EAR file instead of deploying the project as WAR file.

Steps to resolve the issue:

  • Right click on the application and select Application properties

  • Select Deployment and click on New


  • Select the Archive Type as EAR File and provide the name and click on ok

  • Select the Application Assembly and select the Java EE Modules as shown below (this is the WAR profile created for the project) and click on ok then Ok.

  • Right click the Application, Select the Deployment and click on the EAR profile created in the previous steps and deploy the application to the server.



2 comments:

  1. hi, here I include the solution that synthesizes several scenarios

    http://rickymax.wordpress.com/2013/03/27/adf-application-deployment-errors/

    bye and thanks

    ReplyDelete
  2. Thanks Rickymax, it resolved my problem.

    ReplyDelete