E-WL: PIA_servlet.log recording messages java.util.ConcurrentModificationException (Doc ID 3048691.1)

Last updated on SEPTEMBER 20, 2024

Applies to:

Symptoms

Thousands of messages being recorded in the <PS_CFG_HOME>/webserv/<DOMAIN-NAME>/servers/PIA/logs,/PIA_servlet.log like the one below:

java.util.ConcurrentModificationException
at java.base/java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:970)
at java.base/java.util.LinkedList$ListItr.next(LinkedList.java:892)
at psft.pt8.net.JoltSessionPool.getJoltSession(JoltSessionPool.java:269)
at psft.pt8.net.NetSession.getJoltSession(NetSession.java:682)
at psft.pt8.net.NetReqRepSvc.sendRequest(NetReqRepSvc.java:548)
at psft.pt8.net.NetService.requestService(NetService.java:167)
at psft.pt8.net.NetReqRepSvc.requestService(NetReqRepSvc.java:346)
at psft.pt8.jb.JBEntry.processRequest(JBEntry.java:683)
at psft.pt8.psc.onActionGen(psc.java:3394)
at psft.pt8.psc.onAction(psc.java:2097)
at psft.pt8.psc.onAction(psc.java:2086)
at psft.pt8.psc.service(psc.java:1307)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:295)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:353)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:82)
at weblogic.websocket.tyrus.TyrusServletFilter.doFilter(TyrusServletFilter.java:274)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:82)
at psft.pt8.psfilter.doFilter(psfilter.java:88)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:82)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3866)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3829)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:344)
at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197)
at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
at weblogic.servlet.internal.WebAppServletContext.processSecuredExecute(WebAppServletContext.java:2502)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2351)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2326)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2304)
at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1769)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1723)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:272)
at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:651)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)
at weblogic.work.ExecuteThread.run(Unknown Source)

Cause

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