Deadlock when using two event queues

Name: dmR10075 Date: 08/27/2003


Download and install j2ee 1.3.1 with tutorial, start Tutorial, after
creation of first Bean you will get the following deadlock. Reproduced
using 1.5.0b16, on Linux/XAWT. This seems to be a generic problem - the
code which causes a deadlock can as well deadlock with any other
toolkit.

Java stack information for the threads listed above:
===================================================
"AWT-EventQueue-1":
        at java.awt.EventQueue.postEventPrivate(EventQueue.java:188)
        - waiting to lock <0x4392b3b8> (a java.awt.EventQueue)
        at java.awt.EventQueue.postEvent(EventQueue.java:175)
        at sun.awt.PostEventQueue.flush(SunToolkit.java:956)
        - locked <0x43925f70> (a sun.awt.PostEventQueue)
        at sun.awt.SunToolkit.flushPendingEvents(SunToolkit.java:510)
        at java.awt.EventQueue.getNextEvent(EventQueue.java:331)
        at java.awt.EventQueue.pop(EventQueue.java:621)
        - locked <0x43daded8> (a
com.sun.enterprise.tools.deployment.ui.utils.UIEventQueue)
        - locked <0x439fe860> (a
com.sun.enterprise.tools.deployment.ui.utils.UIEventQueue)
        at
com.sun.enterprise.tools.deployment.ui.utils.UIEventQueue.remove(UIEventQueue.java:173)
        at
com.sun.enterprise.tools.deployment.ui.utils.UIDialog.show(UIDialog.java:214)
        at
com.sun.enterprise.tools.deployment.ui.utils.Wizard.show(Wizard.java:486)
        at
com.sun.enterprise.tools.deployment.ui.ejb.NewEjbWizard.<init>(NewEjbWizard.java:102)
        at
com.sun.enterprise.tools.deployment.ui.DeployToolWindow.newEjbJarAction(DeployToolWindow.java:1595)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at
com.sun.enterprise.tools.deployment.ui.utils.UIActionDispatcher.invoke(UIActionDispatcher.java:258)
        at
com.sun.enterprise.tools.deployment.ui.utils.UIActionDispatcher.invoke(UIActionDispatcher.java:276)
        at
com.sun.enterprise.tools.deployment.ui.utils.UIActionDispatcher.actionPerformed(UIActionDispatcher.java:296)
        at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1832)
        at
com.sun.enterprise.tools.deployment.ui.utils.UIMenu$UIMenuItem.fireActionPerformed(UIMenu.java:216)
        at
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2150)
        at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
        at
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:302)
        at
javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1000)
        at
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1041)
        at java.awt.Component.processMouseEvent(Component.java:5419)
        at
javax.swing.JComponent.processMouseEvent(JComponent.java:2920)
        at java.awt.Component.processEvent(Component.java:5216)
        at java.awt.Container.processEvent(Container.java:1936)
        at java.awt.Component.dispatchEventImpl(Component.java:3919)
        at java.awt.Container.dispatchEventImpl(Container.java:1994)
        at java.awt.Component.dispatchEvent(Component.java:3770)
        at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3996)
        at
java.awt.LightweightDispatcher.processMouseEvent(Container.java:3711)
        at
java.awt.LightweightDispatcher.dispatchEvent(Container.java:3641)
        at java.awt.Container.dispatchEventImpl(Container.java:1980)
        at java.awt.Window.dispatchEventImpl(Window.java:1729)
        at java.awt.Component.dispatchEvent(Component.java:3770)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
        at
com.sun.enterprise.tools.deployment.ui.utils.UIEventQueue.dispatchEvent(UIEventQueue.java:214)
        at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:214)
        at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
        at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
        at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
        at
java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
"AWT-XAWT":
        at java.awt.EventQueue.wakeup(EventQueue.java:850)
        - waiting to lock <0x439fe860> (a
com.sun.enterprise.tools.deployment.ui.utils.UIEventQueue)
        at java.awt.EventQueue.wakeup(EventQueue.java:853)
        - locked <0x4392b3b8> (a java.awt.EventQueue)
        at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at sun.awt.SunToolkit.wakeupEventQueue(SunToolkit.java:265)
        at sun.awt.PostEventQueue.postEvent(SunToolkit.java:977)
        at sun.awt.SunToolkit.postEvent(SunToolkit.java:497)
        at sun.awt.X11.XWindow.postEvent(XWindow.java:303)
        at
sun.awt.X11.XWindowPeer.handleWindowFocusOut(XWindowPeer.java:245)
        at
sun.awt.X11.XWindowPeer.handleFocusEvent(XWindowPeer.java:340)
        at
sun.awt.X11.XDecoratedPeer.handleFocusEvent(XDecoratedPeer.java:107)
        at sun.awt.X11.XWindowPeer.dispatchEvent(XWindowPeer.java:352)
        at
sun.awt.X11.XBaseWindow.dispatchToWindow(XBaseWindow.java:745)
        at sun.awt.X11.XToolkit.dispatchEvent(XToolkit.java:375)
        at sun.awt.X11.XToolkit.run(XToolkit.java:463)
        at sun.awt.X11.XToolkit.run(XToolkit.java:419)
        at java.lang.Thread.run(Thread.java:549)
 
Found 1 deadlock.


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