Program: 142920
Project: 142920
Buggy source:
@Override public JMenuItem getMenuPresenter(){
  JMenu menu=new JMenu(NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str"));
  String localImportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem localImport=new JMenuItem(new AbstractAction(localImportMessage){
    public void actionPerformed(    ActionEvent e){
      JFileChooser fileChooser=new JFileChooser();
      fileChooser.setDialogTitle("String_Node_Str");
      Neo4jCustomDirectoryProvider.setEnabled(true);
      fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
      int dialogResult=fileChooser.showOpenDialog(null);
      if (dialogResult == JFileChooser.APPROVE_OPTION) {
        final File neo4jDirectory=fileChooser.getSelectedFile();
        final Neo4jImporter neo4jImporter=Lookup.getDefault().lookup(Neo4jImporter.class);
        LongTaskExecutor executor=new LongTaskExecutor(true);
        executor.execute((LongTask)neo4jImporter,new Runnable(){
          @Override public void run(){
            neo4jImporter.importLocal(neo4jDirectory);
          }
        }
);
      }
      Neo4jCustomDirectoryProvider.setEnabled(false);
    }
  }
);
  String remoteImportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem remoteImport=new JMenuItem(new AbstractAction(remoteImportMessage){
    public void actionPerformed(    ActionEvent e){
    }
  }
);
  String localExportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem localExport=new JMenuItem(new AbstractAction(localExportMessage){
    public void actionPerformed(    ActionEvent e){
    }
  }
);
  String remoteExportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem remoteExport=new JMenuItem(new AbstractAction(remoteExportMessage){
    public void actionPerformed(    ActionEvent e){
    }
  }
);
  menu.add(localImport);
  menu.add(remoteImport);
  menu.add(localExport);
  menu.add(remoteExport);
  return menu;
}

Fixed version (ground truth):
@Override public JMenuItem getMenuPresenter(){
  JMenu menu=new JMenu(NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str"));
  String localImportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem localImport=new JMenuItem(new AbstractAction(localImportMessage){
    public void actionPerformed(    ActionEvent e){
      JFileChooser fileChooser=new JFileChooser();
      fileChooser.setDialogTitle("String_Node_Str");
      Neo4jCustomDirectoryProvider.setEnabled(true);
      fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
      int dialogResult=fileChooser.showOpenDialog(null);
      if (dialogResult == JFileChooser.APPROVE_OPTION) {
        final File neo4jDirectory=fileChooser.getSelectedFile();
        final Neo4jImporter neo4jImporter=Lookup.getDefault().lookup(Neo4jImporter.class);
        LongTaskExecutor executor=new LongTaskExecutor(true);
        executor.execute((LongTask)neo4jImporter,new Runnable(){
          @Override public void run(){
            neo4jImporter.importLocal(neo4jDirectory);
          }
        }
);
      }
      Neo4jCustomDirectoryProvider.setEnabled(false);
    }
  }
);
  String remoteImportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem remoteImport=new JMenuItem(new AbstractAction(remoteImportMessage){
    public void actionPerformed(    ActionEvent e){
    }
  }
);
  String localExportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem localExport=new JMenuItem(new AbstractAction(localExportMessage){
    public void actionPerformed(    ActionEvent e){
      JFileChooser fileChooser=new JFileChooser();
      fileChooser.setDialogTitle("String_Node_Str");
      fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
      int dialogResult=fileChooser.showOpenDialog(null);
      if (dialogResult == JFileChooser.APPROVE_OPTION) {
        final File neo4jDirectory=fileChooser.getSelectedFile();
        final Neo4jExporter neo4jExporter=Lookup.getDefault().lookup(Neo4jExporter.class);
        LongTaskExecutor executor=new LongTaskExecutor(true);
        executor.execute((LongTask)neo4jExporter,new Runnable(){
          @Override public void run(){
            neo4jExporter.exportLocal(neo4jDirectory);
          }
        }
);
      }
    }
  }
);
  String remoteExportMessage=NbBundle.getMessage(Neo4jImportExportAction.class,"String_Node_Str");
  JMenuItem remoteExport=new JMenuItem(new AbstractAction(remoteExportMessage){
    public void actionPerformed(    ActionEvent e){
    }
  }
);
  menu.add(localImport);
  menu.add(remoteImport);
  menu.add(localExport);
  menu.add(remoteExport);
  return menu;
}