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Bug 252270

Summary:	NPE in CPUCallGraphBuilder.getDumpAbsTimeStamp
Product:	profiler	Reporter:	Jiri Sedlacek <jis>
Component:	Engine	Assignee:	Tomas Hurka <thurka>
Status:	NEW ---
Severity:	normal
Priority:	P3
Version:	8.1
Hardware:	PC
OS:	Windows 7
Issue Type:	DEFECT	Exception Reporter:

Description Jiri Sedlacek 2015-05-06 13:27:43 UTC

Got a NPE when switching from Methods/All classes to Threads. Doesn't seem to be easily reproducible:

java.lang.NullPointerException
	at org.netbeans.lib.profiler.results.cpu.CPUCallGraphBuilder.getDumpAbsTimeStamp(CPUCallGraphBuilder.java:194)
	at org.netbeans.lib.profiler.results.cpu.CPUCallGraphBuilder.calculateThreadActiveTimes(CPUCallGraphBuilder.java:839)
	at org.netbeans.lib.profiler.results.cpu.CPUCallGraphBuilder.createPresentationCCTs(CPUCallGraphBuilder.java:167)
	at org.netbeans.lib.profiler.results.cpu.CPUResultsSnapshot.<init>(CPUResultsSnapshot.java:191)
	at org.netbeans.lib.profiler.ProfilerClient.getCPUProfilingResultsSnapshot(ProfilerClient.java:517)
[catch] at org.netbeans.lib.profiler.ui.cpu.LiveCPUView.refreshData(LiveCPUView.java:185)
	at org.netbeans.lib.profiler.ui.cpu.LiveCPUView.access$000(LiveCPUView.java:91)
	at org.netbeans.lib.profiler.ui.cpu.LiveCPUView$ResultsMonitor.cctEstablished(LiveCPUView.java:125)
	at org.netbeans.lib.profiler.results.BaseCallGraphBuilder.fireCCTEstablished(BaseCallGraphBuilder.java:180)
	at org.netbeans.lib.profiler.results.BaseCallGraphBuilder.onBatchStop(BaseCallGraphBuilder.java:101)
	at org.netbeans.lib.profiler.results.AbstractDataFrameProcessor$4.execute(AbstractDataFrameProcessor.java:198)
	at org.netbeans.lib.profiler.results.AbstractDataFrameProcessor.foreachListener(AbstractDataFrameProcessor.java:177)
	at org.netbeans.lib.profiler.results.AbstractDataFrameProcessor.fireBatchStop(AbstractDataFrameProcessor.java:196)
	at org.netbeans.lib.profiler.results.AbstractDataFrameProcessor.processDataFrame(AbstractDataFrameProcessor.java:105)
	at org.netbeans.lib.profiler.results.ProfilingResultsDispatcher$3.run(ProfilingResultsDispatcher.java:203)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)