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From "Zhiguo Ge (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-6013) Problems with null pointer exception catch in server or opt mode for Java applications
Date Tue, 11 Nov 2008 08:18:44 GMT
Problems with null pointer exception catch in server or opt mode for Java applications 
---------------------------------------------------------------------------------------

                 Key: HARMONY-6013
                 URL: https://issues.apache.org/jira/browse/HARMONY-6013
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
    Affects Versions: 5.0M7
         Environment: Windows XP OS, Intel Core(TM)2 Duo CPU
            Reporter: Zhiguo Ge


Harmony has problems with null pointer exception catch under server or opt mode for Java applications.


The following shows a test example:

public class Btest5710 {   
    
    Object obj;

    public static void main(String [] args) {
        (new Btest5710()).test();
    }

    public void test() {
        System.err.println("Start Btest5710 test..."); 
        try {
            sync();
            System.err.println("FAILED: NullPointerException was expected");
            System.exit(-99);
        } catch (NullPointerException e) { 
            System.err.println("PASSED: " + e);
        } catch (Throwable e) { 
            System.err.println("Unexpected exception was thrown:");
            e.printStackTrace();
            System.err.println("FAILED");
            System.exit(-99);
        }
    }

    void sync() {
        synchronized (obj) {
            obj = new Object();
        }
    }

}

When running in server or opt mode,  error will happen and the following is the error message.


Signal reported: GENERAL_PROTECTION_FAULT
Registers:
    EAX: 0x0003f700, EBX: 0x208667ac, ECX: 0x00000004, EDX: 0x00000003
    ESI: 0x02fed15c, EDI: 0x0013f8c0, ESP: 0x0013f6f8, EBP: 0x0086e740
    EIP: 0x00820b8f


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