java.util.ConcurrentModificationException

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  • Stack trace

    • java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:839) at java.util.HashMap$KeyIterator.next(HashMap.java:874) at java.util.AbstractCollection.toArray(AbstractCollection.java:195) at org.icepush.LocalPushGroupManager.getPendingNotifications(LocalPushGroupManager.java:133) at org.icepush.BlockingConnectionServer$RunningServer.service(BlockingConnectionServer.java:338) at org.icepush.BlockingConnectionServer.service(BlockingConnectionServer.java:96) at org.icepush.SequenceTaggingServer.service(SequenceTaggingServer.java:54) at org.icepush.PushStormDetectionServer.service(PushStormDetectionServer.java:52) at org.icepush.servlet.AsyncAdaptingServlet.service(AsyncAdaptingServlet.java:68) at org.icepush.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:56) at org.icepush.servlet.PathDispatcher.service(PathDispatcher.java:39) at org.icepush.servlet.BrowserDispatcher$BrowserEntry.service(BrowserDispatcher.java:101) at org.icepush.servlet.BrowserDispatcher.service(BrowserDispatcher.java:45) at org.icepush.servlet.ConfigurationServlet.service(ConfigurationServlet.java:101) at org.icepush.servlet.PathDispatcher.service(PathDispatcher.java:39) at org.icepush.servlet.MainServlet.service(MainServlet.java:131) at org.icefaces.impl.push.servlet.ICEpushResourceHandler$ICEpushResourceHandlerImpl.handleResourceRequest(ICEpushResourceHandler.java:235) at org.icefaces.impl.push.servlet.ICEpushResourceHandler.handleResourceRequest(ICEpushResourceHandler.java:128) at org.icefaces.impl.application.SessionTimeoutMonitor.handleSessionAwareResourceRequest(SessionTimeoutMonitor.java:63) at org.icefaces.impl.application.SessionAwareResourceHandlerWrapper.handleResourceRequest(SessionAwareResourceHandlerWrapper.java:40) at javax.faces.application.ResourceHandlerWrapper.handleResourceRequest(ResourceHandlerWrapper.java:125) at javax.faces.application.ResourceHandlerWrapper.handleResourceRequest(ResourceHandlerWrapper.java:125) at javax.faces.application.ResourceHandlerWrapper.handleResourceRequest(ResourceHandlerWrapper.java:125) at javax.faces.application.ResourceHandlerWrapper.handleResourceRequest(ResourceHandlerWrapper.java:125) at org.icefaces.impl.application.AuxUploadResourceHandler.handleResourceRequest(AuxUploadResourceHandler.java:82) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:591) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:744)

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