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This bug was originally marked as duplicate of bug 231456, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.0.2 (Build 201411181905) VM: Java HotSpot(TM) 64-Bit Server VM, 24.71-b01, Java(TM) SE Runtime Environment, 1.7.0_71-b14 OS: Windows 7 User Comments: goofdup: Closed debug session on java application. Then clicked stop on heap analysis Stacktrace: java.lang.NullPointerException at org.netbeans.lib.profiler.ProfilerClient.sendSimpleCmdToServer(ProfilerClient.java:2027) at org.netbeans.lib.profiler.ProfilerClient.prepareDetachFromTargetJVM(ProfilerClient.java:804) at org.netbeans.lib.profiler.TargetAppRunner.prepareDetachFromTargetJVM(TargetAppRunner.java:316) at org.netbeans.modules.profiler.NetBeansProfiler.detachFromApp(NetBeansProfiler.java:1043) at org.netbeans.modules.profiler.actions.StopAction$2.run(StopAction.java:130) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
Created attachment 155189 [details] stacktrace
It is not clear what happened. To diagnose the problem we have to be able to reproduce the issue. Can you, please, provide exact steps how to reproduce this problem? Thanks.