This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.

Bug 132456

Summary: NullPointerException at org.netbeans.modules.debugger.jpda.models.LocalsTreeModel.getChildrenImpl
Product: debugger Reporter: axiomsofchoice <axiomsofchoice>
Component: JavaAssignee: Martin Entlicher <mentlicher>
Status: VERIFIED FIXED    
Severity: blocker CC: sustaining
Priority: P3 Keywords: SIMPLEFIX
Version: 6.x   
Hardware: All   
OS: All   
URL: http://statistics.netbeans.org/exceptions/detail.do?id=45253
Issue Type: DEFECT Exception Reporter: 45253
Attachments: stacktrace
Suggested patch for LocalsTreeModel.java

Description axiomsofchoice 2008-04-09 19:20:03 UTC 
Build: NetBeans IDE Dev (Build 200804050004)
VM: Java HotSpot(TM) Client VM, 10.0-b19, Java(TM) SE Runtime Environment, 1.6.0_04-b12
OS: Windows XP, 5.1, x86

User Comments: 
Debugging
Comment 1 axiomsofchoice 2008-04-09 19:20:11 UTC 
Created attachment 59926 [details]
stacktrace
Comment 2 Martin Entlicher 2008-04-09 19:48:34 UTC 
It's likely that the thread was resumed right before this call, which cleared the last operations and caused this NPE.
A check for null last operations will fix this.
Comment 3 rbalada 2008-04-10 16:59:23 UTC 
Created attachment 59997 [details]
Suggested patch for LocalsTreeModel.java
Comment 4 rbalada 2008-04-10 17:06:40 UTC 
Fixed in main

http://hg.netbeans.org/main/rev/51e31260a22c
Comment 5 rbalada 2008-04-10 17:13:45 UTC 
Fixed in main
Comment 6 Jiri Vagner 2008-04-29 13:01:15 UTC 
I'm not able to verify this issue, there are no steps to reproduce.  But "if" condition looks cool and I am sure that
this npe was fixed correctly.

Verified in nb_iz_132456_patch_1.txt :)
Comment 7 rbalada 2008-04-29 13:29:45 UTC 
I've backported the changeset http://hg.netbeans.org/main/rev/51e31260a22c into release61_fixes repository as
http://hg.netbeans.org/release61_fixes/rev/c2c5ad6cd49b

changeset:   77486:c2c5ad6cd49b
tag:         tip
user:        Rudolf Balada <rbalada@netbeans.org>
date:        Thu Apr 10 18:00:46 2008 +0200
summary:     IZ 132456: NullPointerException at org.netbeans.modules.debugger.jpda.models.LocalsTreeModel.getChildrenImpl