java.lang.NoSuchMethodError: org.netbeans.modules.maven.indexer.api.RepositoryQueries.getGroups(Ljava/util/List;)Ljava/util/Set;
   at org.netbeans.modules.maven.repository.GroupListChildren.createKeys(GroupListChildren.java:78)
   at org.openide.nodes.AsynchChildren.run(AsynchChildren.java:206)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1411)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1991)