java.lang.OutOfMemoryError: GC overhead limit exceeded
   at java.lang.String.valueOf(String.java:2868)
   at java.lang.Thread.getName(Thread.java:1148)
   at java.lang.management.ThreadInfo.initialize(ThreadInfo.java:223)
   at java.lang.management.ThreadInfo.<init>(ThreadInfo.java:195)
   at sun.management.ThreadImpl.dumpThreads0(ThreadImpl.java:0)
   at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:446)
   at org.netbeans.modules.sampler.Sampler$1.run(Sampler.java:191)
   at java.util.TimerThread.mainLoop(TimerThread.java:555)
   at java.util.TimerThread.run(TimerThread.java:505)