Export Modeler Error in Weblogic 12c

[pksahoo]

I deployed Activiti explorer in weblogic 12c environment. I got error while export modeler.

Any thought??

Error 500–Internal Server Error

java.lang.NullPointerException
   at org.activiti.explorer.ExplorerApp.terminalError(ExplorerApp.java:239)
   at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleURI(AbstractCommunicationManager.java:2310)
   at com.vaadin.terminal.gwt.server.CommunicationManager.handleURI(CommunicationManager.java:377)
   at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.handleURI(AbstractApplicationServlet.java:1099)
   at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:535)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:844)
   at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:242)
   at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:216)
   at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:132)
   at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:338)
   at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
   at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:74)
   at org.activiti.explorer.filter.ExplorerFilter.doFilter(ExplorerFilter.java:44)
   at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:74)
   at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
   at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:74)
   at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3288)
   at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3254)
   at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
   at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
   at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
   at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2163)
   at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2089)
   at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2074)
   at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1513)
   at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:254)
   at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
   at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

[jbarrez]

Not really. The exception only gives the Vaadin side of things, not the Activiti side. Any more stacktraces in there, that has the org.activiti package in it? (not org.activiti.explorer)

[pksahoo]

No more stack available. I got this error in screen. It works fine if I deploy in Tomcat, but it failed in Weblogic 12c. I am thinking about some weblogic security is not allow to download stream the export file.

[jbarrez]

Hmm that would indeed be a very weblogic thing to do :s But without more exception stacktrace it is looking for a needle in a haystack :s

[pksahoo]

I have done few round of testing with Activiti Modeler export Issue. Here is my test result below:

Tomcat + Activiti 5.15.1 + (Oracle, H2) =  Modeler Export SUCCESS
Tomcat + Activiti 5.17.0 + H2 =  Modeler Export SUCCESS

Weblogic 12c + Activiti 5.15.1 + (Oracle, H2) =  Modeler Export FAILED (looks like Weblogic security Issue)
Weblogic 12c + Activiti 5.17.0 + H2 =  Modeler Export SUCCESS

[jbarrez]

Hmmm it does indeed look like a weird combination of the Oracle driver and weblogic. Surely Activiti can't be the only one suffering from this behaviour on weblogic?

[pksahoo]

Error only in Actviti 5.15.1 and not in Activiti 5.17.0

[jbarrez]

So .. good news that the most recent versions works, right 😉