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  1. JDK
  2. JDK-6949712

regression: deadlock in JNLP2ClassLoader

    Details

    • Subcomponent:
    • Introduced In Version:
    • Resolved In Build:
      b05
    • CPU:
      x86
    • OS:
      windows
    • Verification:
      Verified

      Description

      Load this applet, reload browser a few times, sometimes you will get a deadlock and applet won't be displayed:

      http://spbweb.russia.sun.com/~in81039/custom/Reversi2/reversi2.html


      Found one Java-level deadlock:
      =============================
      "JFXIC-Ping Thread":
        waiting to lock monitor 0x033b23f4 (object 0x236214f8, a sun.plugin2.applet.JNLP2ClassLoader),
        which is held by "AWT-EventQueue-6"
      "AWT-EventQueue-6":
        waiting to lock monitor 0x0c94359c (object 0x236215b8, a sun.plugin2.applet.JNLP2ClassLoader),
        which is held by "Thread-29"
      "Thread-29":
        waiting to lock monitor 0x033b23f4 (object 0x236214f8, a sun.plugin2.applet.JNLP2ClassLoader),
        which is held by "AWT-EventQueue-6"

      Java stack information for the threads listed above:
      ===================================================
      "JFXIC-Ping Thread":
      at com.sun.javafx.eula.Ping.getVisitorID(Unknown Source)
      at com.sun.javafx.eula.Ping.access$000(Unknown Source)
      at com.sun.javafx.eula.Ping$1.run(Unknown Source)
      "AWT-EventQueue-6":
      at java.lang.ClassLoader.loadClass(Unknown Source)
      - waiting to lock <0x236215b8> (a sun.plugin2.applet.JNLP2ClassLoader)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at sun.plugin2.applet.JNLP2ClassLoader.findClass(JNLP2ClassLoader.java:340)
      - locked <0x236214f8> (a sun.plugin2.applet.JNLP2ClassLoader)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      - locked <0x236214f8> (a sun.plugin2.applet.JNLP2ClassLoader)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at java.lang.Class.forName0(Native Method)
      at java.lang.Class.forName(Unknown Source)
      at com.sun.javafx.runtime.adapter.AppletStartupRoutine.run(Unknown Source)
      at com.sun.javafx.tk.swing.SwingToolkit$StartupRoutine.run(Unknown Source)
      at java.awt.event.InvocationEvent.dispatch(Unknown Source)
      at java.awt.EventQueue.dispatchEvent(Unknown Source)
      at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
      at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
      at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
      at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      at java.awt.EventDispatchThread.run(Unknown Source)
      "Thread-29":
      at java.lang.ClassLoader.loadClass(Unknown Source)
      - waiting to lock <0x236214f8> (a sun.plugin2.applet.JNLP2ClassLoader)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      - locked <0x236215b8> (a sun.plugin2.applet.JNLP2ClassLoader)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at java.lang.ClassLoader.defineClass1(Native Method)
      at java.lang.ClassLoader.defineClassCond(Unknown Source)
      at java.lang.ClassLoader.defineClass(Unknown Source)
      at java.security.SecureClassLoader.defineClass(Unknown Source)
      at java.net.URLClassLoader.defineClass(Unknown Source)
      at java.net.URLClassLoader.defineClass(Unknown Source)
      at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at sun.plugin2.applet.Plugin2ClassLoader.defineClassHelper(Unknown Source)
      at sun.plugin2.applet.Plugin2ClassLoader.access$100(Unknown Source)
      at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
      at java.security.AccessController.doPrivileged(Native Method)
      at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
      at sun.plugin2.applet.JNLP2ClassLoader.findClass(JNLP2ClassLoader.java:320)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      - locked <0x236215b8> (a sun.plugin2.applet.JNLP2ClassLoader)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at sun.plugin2.applet.JNLP2Manager$4.run(Unknown Source)
      at java.lang.Thread.run(Unknown Source)

      Found 1 deadlock.

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              • Assignee:
                jdn Jeffrey Nisewanger (Inactive)
                Reporter:
                ngthomas Thomas Ng (Inactive)
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                • Created:
                  Updated:
                  Resolved:
                  Imported:
                  Indexed: