java.lang.OutOfMemoryError: Java heap space
   at java.security.AccessController.getStackAccessControlContext(AccessController.java:0)
   at java.security.AccessController.getContext(AccessController.java:820)
   at java.lang.Thread.init(Thread.java:412)
   at java.lang.Thread.init(Thread.java:349)
   at java.lang.Thread.<init>(Thread.java:445)
   at java.util.TimerThread.<init>(TimerThread.java:499)
   at java.util.Timer.<init>(Timer.java:101)
   at org.netbeans.modules.sampler.Sampler.start(Sampler.java:181)
   at org.netbeans.core.TimableEventQueue.run(TimableEventQueue.java:227)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)