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Bug 167781 - NullPointerException at org.netbeans.modules.debugger.jpda.jdi.ObjectReferenceWrapper.isCollected
Summary: NullPointerException at org.netbeans.modules.debugger.jpda.jdi.ObjectReferenc...
Status: VERIFIED FIXED
Alias: None
Product: debugger
Classification: Unclassified
Component: Java (show other bugs)
Version: 6.x
Hardware: All All
: P1 blocker (vote)
Assignee: Martin Entlicher
URL: http://statistics.netbeans.org/except...
Keywords:
Depends on:
Blocks:
 
Reported: 2009-06-29 10:10 UTC by Vojtech Sigler
Modified: 2009-06-30 09:07 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter: 153085

Attachments
stacktrace (2.10 KB, text/plain)
2009-06-29 10:11 UTC, Vojtech Sigler 		Details
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Description Vojtech Sigler 2009-06-29 10:10:57 UTC 
Build: NetBeans IDE Dev (Build 200906290201)
VM: Java HotSpot(TM) Client VM, 14.0-b16, Java(TM) SE Runtime Environment, 1.6.0_14-b08
OS: Linux, 2.6.28-13-generic, i386

User Comments:
vsigler: Started debugging a jsp file on a Tomcat 6.0 server.



Stacktrace: 
java.lang.NullPointerException
        at org.netbeans.modules.debugger.jpda.jdi.ObjectReferenceWrapper.isCollected(ObjectReferenceWrapper.java:254)
        at org.netbeans.modules.debugger.jpda.breakpoints.ClassBasedBreakpoint.checkLoadedClasses(ClassBasedBreakpoint.java:284)
        at org.netbeans.modules.debugger.jpda.breakpoints.LineBreakpointImpl.setRequests(LineBreakpointImpl.java:217)
        at org.netbeans.modules.debugger.jpda.breakpoints.BreakpointImpl.update(BreakpointImpl.java:149)
        at org.netbeans.modules.debugger.jpda.breakpoints.BreakpointImpl.set(BreakpointImpl.java:127)
        at org.netbeans.modules.debugger.jpda.breakpoints.LineBreakpointImpl.<init>(LineBreakpointImpl.java:127)
Comment 1 Vojtech Sigler 2009-06-29 10:11:07 UTC 
Created attachment 84116 [details]
stacktrace
Comment 2 Vojtech Sigler 2009-06-29 10:32:20 UTC 
Also tested with a clean userdir.

My original testcase was:
1) Create a new web project using tomcat 6.0
2) add a simple scriptlet (out.println("..."))
3) add a line breakpoint in the scriptlet
4) debug project

I've also tested and reproduced this using Glassfish V3 Prelude with the same results. When there's no breakpoint set,
the debugging session starts correctly. The exception fired when I toggle a line breakpoint. The breakpoint is displayed
in the IDE, but it is not hit.

Also tried with multiple projects. Making this a P1, because it makes jsp debugging useless and I haven't found any
workaround.
Comment 3 Vojtech Sigler 2009-06-29 10:51:38 UTC 
This is not limited to jsp only. I just experienced the same when trying to debug a simple j2se project.
Comment 4 Martin Entlicher 2009-06-29 11:08:29 UTC 
It's fixed in changeset:   136386:e98d527547a4
http://hg.netbeans.org/main/rev/e98d527547a4
Comment 5 Quality Engineering 2009-06-29 17:43:31 UTC 
Integrated into 'main-golden', will be available in build *200906291400* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
Changeset: http://hg.netbeans.org/main-golden/rev/e98d527547a4
User: mentlicher@netbeans.org
Log: #167781 - Prevent from NPE.
Comment 6 Vojtech Sigler 2009-06-30 09:07:43 UTC 
Verified in trunk build (200906300200).