java.lang.NullPointerException
   at org.netbeans.lib.profiler.heap.HprofHeap.fillHeapTagBounds(HprofHeap.java:1040)
   at org.netbeans.lib.profiler.heap.HprofHeap.<init>(HprofHeap.java:137)
   at org.netbeans.lib.profiler.heap.HeapFactory.createHeap(HeapFactory.java:87)
   at org.netbeans.lib.profiler.heap.HeapFactory.createHeap(HeapFactory.java:69)
   at org.netbeans.modules.profiler.heapwalk.HeapWalker.createHeap(HeapWalker.java:192)
   at org.netbeans.modules.profiler.heapwalk.HeapWalker.<init>(HeapWalker.java:91)
   at org.netbeans.modules.profiler.heapwalk.HeapWalkerManager.openHeapWalker(HeapWalkerManager.java:182)
   at org.netbeans.modules.profiler.heapwalker.HprofDataObject$1.run(HprofDataObject.java:91)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)