java.lang.OutOfMemoryError: Java heap space
   at sun.text.UCompactIntArray.initPlane(UCompactIntArray.java:160)
   at sun.text.UCompactIntArray.setElementAt(UCompactIntArray.java:73)
   at java.text.RBTableBuilder.addOrder(RBTableBuilder.java:342)
   at java.text.RBTableBuilder.build(RBTableBuilder.java:154)
   at java.text.RBCollationTables.<init>(RBCollationTables.java:83)
   at java.text.RuleBasedCollator.<init>(RuleBasedCollator.java:300)
   at java.text.RuleBasedCollator.<init>(RuleBasedCollator.java:281)
   at sun.util.locale.provider.CollatorProviderImpl.getInstance(CollatorProviderImpl.java:106)
   at java.text.Collator.getInstance(Collator.java:242)
   at java.text.Collator.getInstance(Collator.java:224)
   at org.netbeans.modules.debugger.jpda.ui.models.DebuggingTreeModel$ThreadAlphabetComparator.compare(DebuggingTreeModel.java:784)
   at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)
   at java.util.TimSort.sort(TimSort.java:220)
   at java.util.Arrays.sort(Arrays.java:1438)
   at org.netbeans.modules.debugger.jpda.ui.models.DebuggingTreeModel.reorder(DebuggingTreeModel.java:271)
   at org.netbeans.spi.viewmodel.CachedChildrenTreeModel.getChildren(CachedChildrenTreeModel.java:113)
   at org.netbeans.spi.viewmodel.Models$DelegatingTreeModel.getChildren(Models.java:1795)
   at org.netbeans.modules.debugger.jpda.js.frames.models.DebuggingJSFramesInJavaModelFilter.getChildren(DebuggingJSFramesInJavaModelFilter.java:96)
   at org.netbeans.spi.viewmodel.Models$CompoundTreeModel.getChildren(Models.java:954)
   at org.netbeans.modules.debugger.jpda.ui.models.HiddenCallStackFramesFilter.getChildren(HiddenCallStackFramesFilter.java:281)
   at org.netbeans.spi.viewmodel.Models$CompoundTreeModel.getChildren(Models.java:954)
   at org.netbeans.spi.viewmodel.Models$CompoundModel.getChildren(Models.java:4422)
   at org.netbeans.modules.viewmodel.TreeModelNode$TreeModelChildren.getModelChildren(TreeModelNode.java:1486)
   at org.netbeans.modules.viewmodel.TreeModelNode$TreeModelChildren.run(TreeModelNode.java:1446)
   at org.openide.util.RequestProcessor$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)