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From "Vladimir Ivanov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-987) [classlib][drlvm] VM crashed on the java.lang.Thread.countStackFrames() call
Date Wed, 26 Jul 2006 11:38:15 GMT
[classlib][drlvm] VM crashed on the java.lang.Thread.countStackFrames() call
----------------------------------------------------------------------------

                 Key: HARMONY-987
                 URL: http://issues.apache.org/jira/browse/HARMONY-987
             Project: Harmony
          Issue Type: Bug
            Reporter: Vladimir Ivanov


The spec says for the method java.lang.Thread.countStackFrames() 
"Returns: the number of stack frames in this thread. Throws: IllegalThreadStateException -
if this thread is not suspended." 
but DRLVM crashed while implementation of this class in the luni-kernel module should return
0 (it is correct for all implementations).

=================== test.java ======================
public class test { 
    public static void main (String[] args) { 
        System.out.println("res = " + new Thread(new Thread()).countStackFrames());
    } 
} 
================================================

Output:
C:\tmp\tmp17>C:\jdk1.5.0_06\bin\java.exe -cp . -showversion test
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)

res = 0

C:\tmp\tmp17>C:\harmony\trunk_0427\deploy\jdk\jre\bin\java.exe -cp . -showversion test
java version 1.5 (subset)

(c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
res = 0

C:\tmp\tmp17>C:\harmony\drlvm\trunk\build\win_ia32_msvc_debug\deploy\jre\bin\java -Dvm.assert_dialog=false
-cp . -showversion test
java version "1.5.0"
pre-alpha : not complete or compatible
svn = r425618, (Jul 26 2006), Windows/ia32/msvc 1310, debug build
http://incubator.apache.org/harmony
ERROR: Destructive unwinding: C++ objects detected on stack!
  droping 0x05D4F8F0
 setting curr 0x05D4FA84
java.lang.UnsatisfiedLinkError: armo
        at java.lang.Thread.countStackFrames()
        at test.main(test.java:3)

C:\tmp\tmp17>C:\harmony\drlvm\trunk\build\win_ia32_msvc_release\deploy\jre\bin\java -Dvm.assert_dialog=false
-cp . -showversion test
java version "1.5.0"
pre-alpha : not complete or compatible
svn = r425618, (Jul 26 2006), Windows/ia32/msvc 1310, release build
http://incubator.apache.org/harmony
ERROR: Destructive unwinding: C++ objects detected on stack!
  droping 0x05C0FBEC
 setting curr 0x05C0FF68
java.lang.UnsatisfiedLinkError:
        at java.lang.Thread.countStackFrames()
        at test.main(test.java:3)




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