java.lang.OutOfMemoryError: GC overhead limit exceeded
   at java.util.TreeMap.put(TreeMap.java:577)
   at java.util.TreeSet.add(TreeSet.java:255)
   at org.openide.util.lookup.AbstractLookup$R.initItems(AbstractLookup.java:1167)
   at org.openide.util.lookup.AbstractLookup$R.allItemsWithoutBeforeLookup(AbstractLookup.java:1124)
   at org.openide.util.lookup.AbstractLookup$R.allItems(AbstractLookup.java:1108)
   at org.openide.util.lookup.AbstractLookup$R.allItems(AbstractLookup.java:1101)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.allItems(FilterNode.java:2274)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.allItems(FilterNode.java:2274)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.updateLookup(FilterNode.java:2228)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.checkResult(FilterNode.java:2198)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.allItems(FilterNode.java:2274)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.updateLookup(FilterNode.java:2207)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.checkResult(FilterNode.java:2198)
   at org.openide.nodes.FilterNode$FilterLookup$ProxyResult.allItems(FilterNode.java:2274)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeSingleResult(ProxyLookup.java:1292)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1119)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1086)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1069)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.size(ProxyLookup.java:1154)
   at org.openide.explorer.DefaultEMLookup$NoNodeLookup$ExclusionResult.allItems(DefaultEMLookup.java:254)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeSingleResult(ProxyLookup.java:1292)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1119)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1086)
   at org.openide.util.lookup.ProxyLookup$LazyCollection.delegate(ProxyLookup.java:1069)
   at org.openide.util.lookup.ProxyLookup$LazyList.delegateList(ProxyLookup.java:1314)
   at org.openide.util.lookup.ProxyLookup$LazyList.listIterator(ProxyLookup.java:1339)
   at java.util.AbstractList.equals(AbstractList.java:519)
   at java.util.Collections$UnmodifiableList.equals(Collections.java:1366)
   at org.openide.util.lookup.ProxyLookup$R.collImpl(ProxyLookup.java:622)
   at org.openide.util.lookup.ProxyLookup$R.collectFires(ProxyLookup.java:582)
   at org.openide.util.lookup.ProxyLookup$R.resultChanged(ProxyLookup.java:570)
   at org.openide.util.lookup.ProxyLookup$WeakResult.resultChanged(ProxyLookup.java:803)