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Using the daily build from 2007-09-20 on JDK6u2 running on Ubuntu 7.04. Profile the Anagram game with Memory profiling: Record object creation only, track every 1 allocations, do not record stack traces, and do not use profiling points. After the application starts up, click on the "New Word" button a few times. Then click the take snapshot button. This is what I got: java.lang.NullPointerException at com.sun.tools.profiler.ui.memory.SnapshotAllocResultsPanel.fetchResultsFromSnapshot(SnapshotAllocResultsPanel.java:62) at com.sun.tools.profiler.ui.memory.SnapshotAllocResultsPanel.<init>(SnapshotAllocResultsPanel.java:48) at org.netbeans.modules.profiler.MemorySnapshotPanel.<init>(MemorySnapshotPanel.java:112) at org.netbeans.modules.profiler.SnapshotResultsWindow.displayMemoryResults(SnapshotResultsWindow.java:251) at org.netbeans.modules.profiler.SnapshotResultsWindow.<init>(SnapshotResultsWindow.java:149) at org.netbeans.modules.profiler.SnapshotResultsWindow.get(SnapshotResultsWindow.java:87) at org.netbeans.modules.profiler.ResultsManager.openSnapshot(ResultsManager.java:715) at org.netbeans.modules.profiler.ProfilerControlPanel2$ResultsSnippetPanel.snapshotTaken(ProfilerControlPanel2.java:1417) at org.netbeans.modules.prof I will attach the full message log. I don't know if this is reproducible or not.
Created attachment 49272 [details] IDE message log
Tried to reproduce with the following config: Product Version: NetBeans IDE Dev (Build 200709200000) Java: 1.6.0_02; Java HotSpot(TM) Client VM 1.6.0_02-b05 System: Linux version 2.6.20-16-generic running on i386; UTF-8; en_US (nb) Started NB with a clean user dir, created new AnagramGame and followed your steps. Taking snapshot was successful without any exceptions. Could you, plz, verify the issue with a clean user dir.
Reproduced with Product Version: NetBeans IDE Dev (Build 200709271200) Java: 1.5.0_07; Java HotSpot(TM) Client VM 1.5.0_07-b03 System: SunOS version 5.10 running on x86; ISO646-US; en (nb) Performed 2nd attempt of Sample Java Application (http://www.netbeans.org/nonav/issues/showattachment.cgi/49733/Main.java) profiling after an failed profiling with the following exceptions. After the application had finished Profiler failed to take snapshot and threw the NPE. The following exceptions were thrown during previous profiling attempt (liveness memory one): java.io.IOException: Not enough space at sun.nio.ch.FileChannelImpl.map0(Native Method) at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:742) at org.netbeans.core.output2.FileMapStorage.getReadBuffer(FileMapStorage.java:304) ... and java.lang.OutOfMemoryError at sun.misc.Unsafe.allocateMemory(Native Method) at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:99) at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:288) at sun.nio.ch.Util.getTemporaryDirectBuffer(Util.java:57) at sun.nio.ch.IOUtil.read(IOUtil.java:205) at sun.nio.ch.FileChannelImpl.read(FileChannelImpl.java:145) at org.netbeans.core.output2.FileMapStorage.getReadBuffer(FileMapStorage.java:316) ... See attached messages.log file
Created attachment 49742 [details] messages.log
The "java.io.IOException: Not enough space" exceptions has nothing to do with profiler. NPE can be caused by java.io.IOException. Please reproduce it without any previous exception.
FWIW, I cannot reproduce the NPE with the daily build from 2007-09-28
Closing since the issue can't be reproduced by reporter. Please reopen if reproduced again.