[ http://issues.apache.org/jira/browse/HARMONY-1739?page=comments#action_12440616 ] 
            
Alexei Fedotov commented on HARMONY-1739:
-----------------------------------------

[drlvm][unit] Blocks http://wiki.apache.org/harmony/Unit_Tests_Pass_on_DRLVM 

The issue is a major showstopper for AWT and Swing integration.

> [drlvm] Invocation of JFrame.setVisible(true)  into  harmony unit tests leads to VM crash on Linux
> --------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-1739
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1739
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Linux
>            Reporter: Maxim Makarov
>
> Problem:
> Invocation of JFrame.setVisible(true) method in harmony unit tests leads to VM crash on Linux, but  it happens unstable and occurs when test is in JUnit format.
> If VM if run with JET then test fails sometimes with error
> .Uncaught exception in AWT-NativeEventThread:
> java.lang.NullPointerException
>         at org.apache.harmony.awt.wtk.linux.LinuxEvent.processConfigureEvent(LinuxEvent.java:358)
>         at org.apache.harmony.awt.wtk.linux.LinuxEvent.setEvent(LinuxEvent.java:141)
>         at org.apache.harmony.awt.wtk.linux.LinuxEvent.<init>(LinuxEvent.java:78)
>         at org.ap
> ache.harmony.awt.wtk.linux.LinuxEventQueue.enqueue(LinuxEventQueue.java:94)
>         at org.apache.harmony.awt.wtk.linux.LinuxEventQueue.dispatchEvent(LinuxEventQueue.java:87)
>         at org.apache.harmony.awt.wtk.NativeEventThread.runModalLoop(NativeEventThread.java:57)
>         at org.apache.harmony.awt.wtk.NativeEventThread.run(NativeEventThread.java:51)
>         at java.lang.Thread.runImpl(Unknown Source)
> Code for reproducing (Try to run this test several times): 
> import javax.swing.*;
> public class Test extends junit.framework.TestCase {
>     private JFrame frame;
>     protected void tearDown() throws Exception {
>         super.tearDown();
>          frame.dispose();
>     }
>     public void testTest() {
>         frame = new JFrame();
>         frame.setVisible(true);
>     }
> }
> Running script:
> #!/bin/bash
> # set path to Harmony
> HARMONY=" ... "
> for i in 1 2 3 4 5; do
>     $HARMONY/bin/java -showversion -cp "junit.jar:." junit.textui.TestRunner Test
> done
> Output on RI:
> ----------------
> java version "1.5.0_06"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
> Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode)
> .
> Time: 0.263
> OK (1 tests)
> Output on Harmony:
> ------------------------
> $run.sh
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r452710, (Oct  4 2006), Linux/ia32/gcc 3.3.4, release build 
> http://incubator.apache.org/harmony <http://incubator.apache.org/harmony> 
> ..
> SIGSEGV in VM code.
> Stack trace:
> Time: 0.741
> OK (1 tests)
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r452710, (Oct  4 2006), Linux/ia32/gcc 3.3.4, release build 
> http://incubator.apache.org/harmony <http://incubator.apache.org/harmony> 
> ..
> Time: 0.746
> OK (1 tests)
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r452710, (Oct  4 2006), Linux/ia32/gcc 3.3.4, release build 
> http://incubator.apache.org/harmony <http://incubator.apache.org/harmony> 
> ..
> free(): invalid pointer 0x887fb60!
> Time: 0.746
> OK (1 tests)
> ...

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