java.lang.NullPointerException
   at org.netbeans.lib.profiler.instrumentation.ClassManager.storeClassFileBytesForCustomLoaderClasses(ClassManager.java:285)
   at org.netbeans.lib.profiler.instrumentation.RecursiveMethodInstrumentor1.preGetInitialMethodsToInstrument(RecursiveMethodInstrumentor1.java:525)
   at org.netbeans.lib.profiler.instrumentation.RecursiveMethodInstrumentor1.getInitialMethodsToInstrument(RecursiveMethodInstrumentor1.java:96)
   at org.netbeans.lib.profiler.instrumentation.Instrumentor.createInitialInstrumentMethodGroupResponseForCallGraph(Instrumentor.java:461)
   at org.netbeans.lib.profiler.instrumentation.Instrumentor.createInitialInstrumentMethodGroupResponse(Instrumentor.java:310)
   at org.netbeans.lib.profiler.ProfilerClient.instrumentMethodGroupFromRoot(ProfilerClient.java:1924)
   at org.netbeans.lib.profiler.ProfilerClient.access$200(ProfilerClient.java:89)
   at org.netbeans.lib.profiler.ProfilerClient$SeparateCmdExecutionThread.run(ProfilerClient.java:120)