java.util.ConcurrentModificationException

Icesoft | guo_zjin | 9 years ago
  1. 0

    problem with RenderManager

    Icesoft | 9 years ago | guo_zjin
    java.util.ConcurrentModificationException
  2. 0

    Tomcat 6.0.2 and 6.0.14 (although less frequent) will send a HTTP 500 message because of this error: 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) When the bridge receives the error message it'll just shutdown. The server is not aware of this and it will happily queue the generated updates creating this pseudo memory leak.

    ICEsoft JIRA Issue Tracker | 9 years ago | Mircea Toma
    java.util.ConcurrentModificationException
  3. 0

    Tomcat 6.0.2 and 6.0.14 (although less frequent) will send a HTTP 500 message because of this error: 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) When the bridge receives the error message it'll just shutdown. The server is not aware of this and it will happily queue the generated updates creating this pseudo memory leak.

    ICEsoft JIRA Issue Tracker | 9 years ago | Mircea Toma
    java.util.ConcurrentModificationException
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    Stack Overflow | 5 years ago | user952887
    java.util.ConcurrentModificationException
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    categoryVOHome.instance

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Root Cause Analysis

  1. java.util.ConcurrentModificationException

    No message provided

    at java.util.HashMap$HashIterator.nextEntry()
  2. Java RT
    HashMap$KeyIterator.next
    1. java.util.HashMap$HashIterator.nextEntry(HashMap.java:841)
    2. java.util.HashMap$KeyIterator.next(HashMap.java:877)
    2 frames
  3. Glassfish Core
    RequestFacade.getAttributeNames
    1. org.apache.catalina.util.Enumerator.<init>(Enumerator.java:101)
    2. org.apache.catalina.util.Enumerator.<init>(Enumerator.java:67)
    3. org.apache.catalina.connector.Request.getAttributeNames(Request.java:938)
    4. org.apache.catalina.connector.RequestFacade.getAttributeNames(RequestFacade.java:278)
    4 frames
  4. JSF
    WebappLifecycleListener.requestDestroyed
    1. com.sun.faces.application.WebappLifecycleListener.requestDestroyed(WebappLifecycleListener.java:75)
    1 frame
  5. Glassfish Core
    CoyoteAdapter.service
    1. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
    2. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    3. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    4. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    5. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
    5 frames
  6. Grizzly HTTP
    JIoEndpoint$Worker.run
    1. org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
    2. org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
    3. org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
    3 frames
  7. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:595)
    1 frame