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Bug 164407 - com.sun.jdi.InternalException: Unexpected JDWP Error: 21
Summary: com.sun.jdi.InternalException: Unexpected JDWP Error: 21
Status: CLOSED INCOMPLETE
Alias: None
Product: debugger
Classification: Unclassified
Component: Java (show other bugs)
Version: 6.x
Hardware: All All
: P3 blocker (vote)
Assignee: Martin Entlicher
URL: http://statistics.netbeans.org/except...
Keywords:
Depends on:
Blocks:
 
Reported: 2009-05-04 18:02 UTC by ranbato
Modified: 2010-05-06 11:51 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter: 150568

Attachments
stacktrace (1.38 KB, text/plain)
2009-05-04 18:02 UTC, ranbato 		Details
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Description ranbato 2009-05-04 18:02:10 UTC 
Build: NetBeans IDE 6.7 Beta (Build 200904242137)
VM: Java HotSpot(TM) Client VM, 11.3-b02, Java(TM) SE Runtime Environment, 1.6.0_13-b03
OS: Windows XP, 5.1, x86

User Comments:
ranbato: Debugging in Glassfish 2.1



Stacktrace: 
com.sun.jdi.InternalException: Unexpected JDWP Error: 21
        at com.sun.tools.jdi.JDWPException.toJDIException(JDWPException.java:47)
        at com.sun.tools.jdi.ClassTypeImpl.superclass(ClassTypeImpl.java:34)
        at org.netbeans.modules.debugger.jpda.jdi.ClassTypeWrapper.superclass(ClassTypeWrapper.java:218)
        at org.netbeans.modules.debugger.jpda.models.AbstractObjectVariable.getSuper(AbstractObjectVariable.java:289)
        at org.netbeans.modules.debugger.jpda.ui.models.VariablesTreeModelFilter.getFilter(VariablesTreeModelFilter.java:508)
        at org.netbeans.modules.debugger.jpda.ui.models.VariablesTreeModelFilter.isLeaf(VariablesTreeModelFilter.java:255)
Comment 1 ranbato 2009-05-04 18:02:24 UTC 
Created attachment 81487 [details]
stacktrace
Comment 2 Martin Entlicher 2009-05-04 19:19:05 UTC 
We're still getting new and new JDWPExceptions... really nice! Number 21 was not here yet!

Are you able to reproduce this? Do you have an idea what class could cause this, which variables did you see when this
happened?
Comment 3 Martin Entlicher 2009-05-04 19:51:26 UTC 
From JDWP specification INVALID_CLASS (which is the number 21) can be returned from a bunch of calls. It would be really
valuable to know how this happens (steps to reproduce).
Without reproducibility I can only mask the error by catching the exception and pretending that this class does not have
any superclass. Which is not correct, of course.
Comment 4 ranbato 2009-05-05 19:21:08 UTC 
So far, I am unable to reproduce the error.

It is basically a sample JMS project (see some of the other issues I have reported).  I believe this occurred while I
was debugging the message bean.
Comment 5 Vojtech Sigler 2009-09-18 12:59:44 UTC 
Without requested information for long time - INVALID. We can't do anything in this case. Reporter, please add some
steps to reproduce or any other relevant information and reopen issue. Thanks in advance.
Comment 6 Marian Mirilovic 2010-05-06 11:51:31 UTC 
closing incomplete issues