java.lang.OutOfMemoryError: GC overhead limit exceeded
   at org.openide.nodes.ChildFactory.createWaitNode(ChildFactory.java:194)
   at org.openide.nodes.ChildFactory.getWaitNode(ChildFactory.java:172)
   at org.openide.nodes.AsynchChildren$1.add(AsynchChildren.java:190)
   at org.netbeans.modules.maven.repository.GroupListChildren.createKeys(GroupListChildren.java:107)
   at org.openide.nodes.AsynchChildren.run(AsynchChildren.java:215)
   at org.openide.util.RequestProcessor$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)