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  1. JDK
  2. JDK-8019274

RMI thread can no longer call out to AWT thread for webstart app

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    • b01
    • windows_7
    • Not verified

        FULL PRODUCT VERSION :
        Java(TM) SE Runtime Environment (build 1.7.0_40-ea-b29)
        Java HotSpot(TM) Client VM (build 24.0-b48, mixed mode, sharing)

        ADDITIONAL OS VERSION INFORMATION :
        Microsoft Windows [Version 6.1.7601]

        A DESCRIPTION OF THE PROBLEM :
        We have a client-server app where the client is notified over RMI from the server using SwingUtilities.invokeLater. These calls all fail with a NullPointerException when our application is launched with Java Web Start, but succeed when launched as a local application

        REGRESSION. Last worked in version 7u21


        ERROR MESSAGES/STACK TRACES THAT OCCUR :
        java.lang.NullPointerException
                at sun.awt.SunToolkit.getSystemEventQueueImplPP(Unknown Source)
                at sun.awt.SunToolkit.getSystemEventQueueImplPP(Unknown Source)
                at sun.awt.SunToolkit.getSystemEventQueueImpl(Unknown Source)
                at java.awt.Toolkit.getEventQueue(Unknown Source)
                at java.awt.EventQueue.invokeLater(Unknown Source)
                at javax.swing.SwingUtilities.invokeLater(Unknown Source)
                at com.nexgenfs.process.processcontroller.ui.MainPanel$PListener.changed(MainPanel.java:242)
                at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
                at java.lang.reflect.Method.invoke(Unknown Source)
                at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
                at sun.rmi.transport.Transport$1.run(Unknown Source)
                at sun.rmi.transport.Transport$1.run(Unknown Source)
                at java.security.AccessController.doPrivileged(Native Method)
                at sun.rmi.transport.Transport.serviceCall(Unknown Source)
                at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
                at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
                at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
                at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
                at java.lang.Thread.run(Unknown Source)
                at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
                at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
                at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
                at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178)
                at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132)
                at com.sun.proxy.$Proxy15.changed(Unknown Source)
                at com.nexgenfs.process.processcontroller.manager.ManagerImpl$4.fire(ManagerImpl.java:717)
                at com.nexgenfs.process.processcontroller.manager.ManagerImpl$7.run(ManagerImpl.java:768)
                at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
                at java.lang.Thread.run(Thread.java:662)


        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        Was not able to reduce to a simple test case
        ---------- END SOURCE ----------

              ddehaven David Dehaven (Inactive)
              webbuggrp Webbug Group
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                Created:
                Updated:
                Resolved: