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From "Pavel Rebriy (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3910) [drlvm][verifier] VerifyError is reported for class in mpowerplayer application
Date Fri, 18 May 2007 11:00:16 GMT
[drlvm][verifier] VerifyError is reported for class in mpowerplayer application
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                 Key: HARMONY-3910
                 URL: https://issues.apache.org/jira/browse/HARMONY-3910
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Pavel Rebriy


There is a bug described by Chris Elford in HARMONY-3720.

Chris Elford [27/Apr/07 03:08 PM]
Note that I found another app that exhibits the data flow analysis error.

the mpowerplayer.com player.jar file fails (http://mpowerplayer.com/download.jsp?build=1185):

C:\java\test\mpp\mpp-sdk>c:\java\sun50_09_jre\bin\java -jar player.jar
mpowerplayer 2.0.1185

C:\java\test\mpp\mpp-sdk>c:\java\harmony-hdk-r532358\jdk\jre\bin\java -jar player.jar
Uncaught exception in main:
java.lang.reflect.InvocationTargetException
        at java.lang.reflect.VMReflection.invokeMethod(VMReflection.java)
        at java.lang.reflect.Method.invoke(Method.java:382)
        at org.apache.harmony.vm.JarRunner.main(JarRunner.java:80)
Caused by: java.lang.VerifyError: (class: com/mpp/player/mphc, method: <clinit>()V)
Data flow analysis error
        at java.lang.ClassLoader.defineClass0(ClassLoader.java)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:417)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.findClassImpl(Unknown Source)
        at java.net.URLClassLoader$4.run(Unknown Source)
        at java.net.URLClassLoader$4.run(Unknown Source)
        at java.security.AccessController.doPrivilegedImpl(AccessController.java:171)
        at java.security.AccessController.doPrivileged(AccessController.java:64)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:554)
        at java.lang.ClassLoader$SystemClassLoader.loadClass(ClassLoader.java:942)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:311)
        at java.lang.reflect.VMReflection.invokeMethod(VMReflection.java)
        ... 2 more 

The problem is in analyzing subroutine bounds algorithm, verifier performs data flow analysis
on a wrong basic block.



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