java.util.ConcurrentModificationException

ZK-Tracker | christian | 9 months ago
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  1. 0

    Hi, when loading serialized sessions and initializing it with didAcitivate the following stack-trace occurs: {code:java} java.util.ConcurrentModificationException at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966) at java.util.LinkedList$ListItr.next(LinkedList.java:888) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2915) at org.zkoss.zul.Combobox.sessionDidActivate(Combobox.java:1060) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zul.Listbox.sessionDidActivate(Listbox.java:3269) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.impl.PageImpl.sessionDidActivate(PageImpl.java:1130) at org.zkoss.zk.ui.impl.DesktopImpl.sessDidActivate(DesktopImpl.java:1076) at org.zkoss.zk.ui.impl.DesktopImpl.sessionDidActivate(DesktopImpl.java:1021) at org.zkoss.zk.ui.impl.SimpleDesktopCache.sessionDidActivate(SimpleDesktopCache.java:203) at org.zkoss.zk.ui.impl.SessionDesktopCacheProvider.sessionDidActivate(SessionDesktopCacheProvider.java:77) at org.zkoss.zk.ui.impl.AbstractWebApp.sessionDidActivate(AbstractWebApp.java:366) at org.zkoss.zk.ui.http.SimpleSession$2.didActivate(SimpleSession.java:520) at org.zkoss.zk.ui.http.WebManager.addActivationListener(WebManager.java:367) at org.zkoss.zk.ui.http.SimpleSession.sessionDidActivate(SimpleSession.java:515) at org.zkoss.zk.ui.http.SerializableSession.sessionDidActivate(SerializableSession.java:65) {code} This also depends on the session's desktops and views and does not occur any times. Will post a pull request on github for this.

    ZK-Tracker | 9 months ago | christian
    java.util.ConcurrentModificationException
  2. 0

    Hi, when loading serialized sessions and initializing it with didAcitivate the following stack-trace occurs: {code:java} java.util.ConcurrentModificationException at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966) at java.util.LinkedList$ListItr.next(LinkedList.java:888) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2915) at org.zkoss.zul.Combobox.sessionDidActivate(Combobox.java:1060) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zul.Listbox.sessionDidActivate(Listbox.java:3269) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921) at org.zkoss.zk.ui.impl.PageImpl.sessionDidActivate(PageImpl.java:1130) at org.zkoss.zk.ui.impl.DesktopImpl.sessDidActivate(DesktopImpl.java:1076) at org.zkoss.zk.ui.impl.DesktopImpl.sessionDidActivate(DesktopImpl.java:1021) at org.zkoss.zk.ui.impl.SimpleDesktopCache.sessionDidActivate(SimpleDesktopCache.java:203) at org.zkoss.zk.ui.impl.SessionDesktopCacheProvider.sessionDidActivate(SessionDesktopCacheProvider.java:77) at org.zkoss.zk.ui.impl.AbstractWebApp.sessionDidActivate(AbstractWebApp.java:366) at org.zkoss.zk.ui.http.SimpleSession$2.didActivate(SimpleSession.java:520) at org.zkoss.zk.ui.http.WebManager.addActivationListener(WebManager.java:367) at org.zkoss.zk.ui.http.SimpleSession.sessionDidActivate(SimpleSession.java:515) at org.zkoss.zk.ui.http.SerializableSession.sessionDidActivate(SerializableSession.java:65) {code} This also depends on the session's desktops and views and does not occur any times. Will post a pull request on github for this.

    ZK-Tracker | 9 months ago | christian
    java.util.ConcurrentModificationException
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Root Cause Analysis

  1. java.util.ConcurrentModificationException

    No message provided

    at java.util.LinkedList$ListItr.checkForComodification()
  2. Java RT
    LinkedList$ListItr.next
    1. java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966)
    2. java.util.LinkedList$ListItr.next(LinkedList.java:888)
    2 frames
  3. ZK Kernel
    AbstractComponent.sessionDidActivate
    1. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2915)
    1 frame
  4. ZK XUL Components
    Combobox.sessionDidActivate
    1. org.zkoss.zul.Combobox.sessionDidActivate(Combobox.java:1060)
    1 frame
  5. ZK Kernel
    AbstractComponent.sessionDidActivate
    1. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    2. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    3. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    3 frames
  6. ZK XUL Components
    Listbox.sessionDidActivate
    1. org.zkoss.zul.Listbox.sessionDidActivate(Listbox.java:3269)
    1 frame
  7. ZK Kernel
    SerializableSession.sessionDidActivate
    1. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    2. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    3. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    4. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    5. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    6. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    7. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    8. org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2921)
    9. org.zkoss.zk.ui.impl.PageImpl.sessionDidActivate(PageImpl.java:1130)
    10. org.zkoss.zk.ui.impl.DesktopImpl.sessDidActivate(DesktopImpl.java:1076)
    11. org.zkoss.zk.ui.impl.DesktopImpl.sessionDidActivate(DesktopImpl.java:1021)
    12. org.zkoss.zk.ui.impl.SimpleDesktopCache.sessionDidActivate(SimpleDesktopCache.java:203)
    13. org.zkoss.zk.ui.impl.SessionDesktopCacheProvider.sessionDidActivate(SessionDesktopCacheProvider.java:77)
    14. org.zkoss.zk.ui.impl.AbstractWebApp.sessionDidActivate(AbstractWebApp.java:366)
    15. org.zkoss.zk.ui.http.SimpleSession$2.didActivate(SimpleSession.java:520)
    16. org.zkoss.zk.ui.http.WebManager.addActivationListener(WebManager.java:367)
    17. org.zkoss.zk.ui.http.SimpleSession.sessionDidActivate(SimpleSession.java:515)
    18. org.zkoss.zk.ui.http.SerializableSession.sessionDidActivate(SerializableSession.java:65)
    18 frames