Program: 46216
Project: 46216
Buggy source:
@Override public void initialize(ServerSessionManager loginManager){
  this.loginManager=loginManager;
  String serverHostAndPort=loginManager.getServerNameAndPort();
  this.baseURL="String_Node_Str" + serverHostAndPort + "String_Node_Str";
  WorldManager worldManager=ClientContextJME.getWorldManager();
  worldManager.addUserData(Repository.class,new Repository(worldManager,new WonderlandAvatarCache(ClientContext.getUserDirectory(bundle.getString("String_Node_Str")))));
  loginManager.addLifecycleListener(lifecycleListener);
  avatarControlsMI=new JMenuItem(bundle.getString("String_Node_Str"));
  avatarControlsMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      if (testPanelRef == null || testPanelRef.get() == null) {
        AvatarTestPanel test=new AvatarTestPanel();
        JFrame f=new JFrame(bundle.getString("String_Node_Str"));
        f.getContentPane().add(test);
        f.pack();
        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
        test.setAvatarCharactar(curAvatar.getAvatarCharacter());
        testPanelRef=new WeakReference(test);
      }
 else {
        SwingUtilities.getRoot(testPanelRef.get().getParent()).setVisible(true);
      }
    }
  }
);
  avatarMI=new JMenuItem(bundle.getString("String_Node_Str"));
  avatarMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      ViewCell cell=ClientContextJME.getViewManager().getPrimaryViewCell();
      if (cell instanceof AvatarCell) {
        AvatarImiJME rend=(AvatarImiJME)((AvatarCell)cell).getCellRenderer(ClientContext.getRendererType());
        AvatarConfigFrame f=new AvatarConfigFrame(rend);
        f.setVisible(true);
      }
    }
  }
);
  avatarSettingsMI=new JMenuItem(bundle.getString("String_Node_Str"));
  avatarSettingsMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      AvatarInstrumentation in=new AvatarInstrumentation(instrumentation);
      in.setVisible(true);
    }
  }
);
  startingLocationMI=new JMenuItem(bundle.getString("String_Node_Str"));
  startingLocationMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      GameContext context=curAvatar.getAvatarCharacter().getContext();
      CharacterSteeringHelm helm=curAvatar.getAvatarCharacter().getContext().getSteering();
      helm.addTaskToTop(new GoTo(new Vector3f(0,0,0),context));
      helm.setEnable(true);
    }
  }
);
  avatarConfigFrameMI=new JMenuItem(bundle.getString("String_Node_Str"));
  avatarConfigFrameMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      ViewCell cell=ClientContextJME.getViewManager().getPrimaryViewCell();
      if (cell instanceof AvatarCell) {
        AvatarImiJME rend=(AvatarImiJME)((AvatarCell)cell).getCellRenderer(ClientContext.getRendererType());
        AvatarConfigFrame f=new AvatarConfigFrame(rend);
        f.setVisible(true);
      }
    }
  }
);
  instrumentation=new DefaultInstrumentation(ClientContextJME.getWorldManager());
  ClientContextJME.getAvatarRenderManager().registerRenderer(loginManager,AvatarImiJME.class,AvatarControls.class);
  super.initialize(loginManager);
}

Fixed version (ground truth):
@Override public void initialize(ServerSessionManager loginManager){
  this.loginManager=loginManager;
  String serverHostAndPort=loginManager.getServerNameAndPort();
  this.baseURL="String_Node_Str" + serverHostAndPort + "String_Node_Str";
  WorldManager worldManager=ClientContextJME.getWorldManager();
  worldManager.addUserData(Repository.class,new Repository(worldManager,new WonderlandAvatarCache(ClientContext.getUserDirectory(bundle.getString("String_Node_Str")))));
  loginManager.addLifecycleListener(lifecycleListener);
  avatarControlsMI=new JMenuItem(bundle.getString("String_Node_Str"));
  avatarControlsMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      if (testPanelRef == null || testPanelRef.get() == null) {
        AvatarTestPanel test=new AvatarTestPanel();
        JFrame f=new JFrame(bundle.getString("String_Node_Str"));
        f.getContentPane().add(test);
        f.pack();
        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
        test.setAvatarCharactar(curAvatar.getAvatarCharacter());
        testPanelRef=new WeakReference(test);
      }
 else {
        SwingUtilities.getRoot(testPanelRef.get().getParent()).setVisible(true);
      }
    }
  }
);
  avatarMI=new JMenuItem(bundle.getString("String_Node_Str"));
  avatarMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      ViewCell cell=ClientContextJME.getViewManager().getPrimaryViewCell();
      if (cell instanceof AvatarCell) {
        AvatarImiJME rend=(AvatarImiJME)((AvatarCell)cell).getCellRenderer(ClientContext.getRendererType());
        AvatarConfigFrame f=new AvatarConfigFrame(rend);
        f.setVisible(true);
      }
    }
  }
);
  avatarSettingsMI=new JMenuItem(bundle.getString("String_Node_Str"));
  avatarSettingsMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      AvatarInstrumentation in=new AvatarInstrumentation(instrumentation);
      in.setVisible(true);
    }
  }
);
  startingLocationMI=new JMenuItem(bundle.getString("String_Node_Str"));
  startingLocationMI.addActionListener(new ActionListener(){
    public void actionPerformed(    ActionEvent e){
      GameContext context=curAvatar.getAvatarCharacter().getContext();
      CharacterSteeringHelm helm=curAvatar.getAvatarCharacter().getContext().getSteering();
      helm.addTaskToTop(new GoTo(new Vector3f(0,0,0),context));
      helm.setEnable(true);
    }
  }
);
  instrumentation=new DefaultInstrumentation(ClientContextJME.getWorldManager());
  ClientContextJME.getAvatarRenderManager().registerRenderer(loginManager,AvatarImiJME.class,AvatarControls.class);
  super.initialize(loginManager);
}