java.util.ConcurrentModificationException

Exception #2456161

Samebug tips0

We couldn't find tips for this exception.

Don't give up yet. Paste your full stack trace to get a solution.

Solutions on the web1193

  • via Unknown by Mircea Toma,
  • via Unknown by Mircea Toma,
  • via Unknown by guo_zjin,
  • Stack trace

    • java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:787) at java.util.HashMap$KeyIterator.next(HashMap.java:823) at org.apache.catalina.util.Enumerator.<init>(Enumerator.java:101) at org.apache.catalina.util.Enumerator.<init>(Enumerator.java:67) at org.apache.catalina.connector.Request.getAttributeNames(Request.java:929) at org.apache.catalina.connector.RequestFacade.getAttributeNames(RequestFacade.java:277) at com.sun.faces.application.WebappLifecycleListener.requestDestroyed(WebappLifecycleListener.java:76) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:818) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:624) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445) at java.lang.Thread.run(Thread.java:613)

    Write tip

    You have a different solution? A short tip here would help you and many other users who saw this issue last week.

    Users with the same issue

    Unknown visitor
    Unknown visitorOnce,
    derproggerderprogger
    Once,
    Unknown visitor
    Unknown visitorOnce,
    Unknown visitor
    Unknown visitorOnce,
    iridiciridic
    2 times, last one
    23 more bugmates