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This bug was originally marked as duplicate of bug 156579, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.0 Beta 2 (Build 201102140001) VM: Java HotSpot(TM) 64-Bit Server VM, 17.0-b17, Java(TM) SE Runtime Environment, 1.6.0_21-b07 OS: Windows 7 User Comments: rkamradt: entering breakpoint while debugging Stacktrace: java.lang.NullPointerException at org.netbeans.modules.debugger.jpda.models.CallStackFrameImpl$EqualsInfo.equals(CallStackFrameImpl.java:958) at org.netbeans.modules.debugger.jpda.models.CallStackFrameImpl.equals(CallStackFrameImpl.java:899) at java.util.HashMap.put(HashMap.java:376) at org.openide.nodes.Children$Dupl.updateListAndMap(Children.java:1717) at org.openide.nodes.Children$Dupl.updateList(Children.java:1701) at org.openide.nodes.Children$Keys.setKeys(Children.java:1526)
Created attachment 107345 [details] stacktrace
Fixed by changeset: 191928:494abc0ab465 http://hg.netbeans.org/main/rev/494abc0ab465
Integrated into 'main-golden', will be available in build *201104050400* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main/rev/494abc0ab465 User: mentlicher@netbeans.org Log: #197163 Prevent from NPE when location is null.