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Posted to commits@harmony.apache.org by "Gregory Shimansky (JIRA)" <ji...@apache.org> on 2007/01/18 11:49:30 UTC
[jira] Closed: (HARMONY-2976) [drlvm][interpreter] VM crashes
instead of throwing NullPointerException
[ https://issues.apache.org/jira/browse/HARMONY-2976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gregory Shimansky closed HARMONY-2976.
--------------------------------------
VERIFIED
> [drlvm][interpreter] VM crashes instead of throwing NullPointerException
> -------------------------------------------------------------------------
>
> Key: HARMONY-2976
> URL: https://issues.apache.org/jira/browse/HARMONY-2976
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: Windows and Linux
> Reporter: Vera Petrashkova
> Assigned To: Gregory Shimansky
> Attachments: fix-2976.diff, fix-2976_2.diff
>
>
> [drlvm][interpreter] VM crashes instead of throwing NullPointerException if null object is used for synchronization
> The following test demonstrates that interpreter crashes when object which was not initialized (null) is used for synchronization.
> -----------------NullSynchTest.java---------------
> public class NullSyncTest {
> static Object objNull = null;
> public static void main(String[] args) {
> try {
> syncNull();
> System.out.println("Test failed: NullPointerException should be thrown");
> } catch (NullPointerException e) {
> System.out.println("Test passed: " + e);
> } catch (Throwable e) {
> e.printStackTrace();
> System.out.println("Test failed: unexpected " + e);
> }
> }
> public static void syncNull() {
> synchronized (objNull) {
> objNull = new Object();
> }
> }
> }
> ------------------------
> On Windows this test reports
> An unhandled error (4) has occurred.
> HyGeneric_Signal_Number=00000004
> ExceptionCode=c0000005
> ExceptionAddress=10003974
> ContextFlags=0001003f
> Handler1=00401100
> Handler2=111072C0
> InaccessibleAddress=00000004
> EDI=020A86E0
> ESI=0013F6DC
> EAX=00000004
> EBX=0013F718
> ECX=00000000
> EDX=00000004
> EIP=10003974
> ESP=0013F520
> EBP=0013F634
> Module= ...HYTHR.dll
> On Linux this test finishes with Segmentation fault
> On Jitrino this test passes.
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