Program: 46271
Project: 46271
Buggy source:
public void initialize(ServerSessionManager loginManager){
  ClientContextJME.getAvatarRenderManager().registerRenderer(AvatarImiJME.class);
  ClientContextJME.getViewManager().addViewManagerListener(new ViewManagerListener(){
    public void primaryViewCellChanged(    ViewCell oldViewCell,    ViewCell newViewCell){
      if (oldViewCell != null) {
        Logger.getAnonymousLogger().severe("String_Node_Str");
        return;
      }
      CellRenderer rend=newViewCell.getCellRenderer(Cell.RendererType.RENDERER_JME);
      if (!(rend instanceof AvatarImiJME))       return;
      final AvatarImiJME avatar=(AvatarImiJME)rend;
      if (testPanelRef == null || testPanelRef.get() == null) {
      }
 else {
        testPanelRef.get().setAvatarCharactar(avatar.getAvatarCharacter());
      }
      JMenuItem avatarControlFrameMI=new JMenuItem("String_Node_Str");
      avatarControlFrameMI.addActionListener(new ActionListener(){
        public void actionPerformed(        ActionEvent e){
          if (testPanelRef == null || testPanelRef.get() == null) {
            AvatarTestPanel test=new AvatarTestPanel();
            JFrame f=new JFrame("String_Node_Str");
            f.getContentPane().add(test);
            f.pack();
            f.setVisible(true);
            f.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
            test.setAvatarCharactar(avatar.getAvatarCharacter());
            testPanelRef=new WeakReference(test);
          }
 else {
            SwingUtilities.getRoot(testPanelRef.get().getParent()).setVisible(true);
          }
        }
      }
);
      JmeClientMain.getFrame().addToEditMenu(avatarControlFrameMI);
      JMenuItem avatarConfigFrameMI=new JMenuItem("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);
          }
        }
      }
);
      JmeClientMain.getFrame().addToEditMenu(avatarConfigFrameMI);
      JMenuItem instrumentFrameMI=new JMenuItem("String_Node_Str");
      instrumentFrameMI.addActionListener(new ActionListener(){
        public void actionPerformed(        ActionEvent e){
          AvatarInstrumentation in=new AvatarInstrumentation(instrumentation);
          in.setVisible(true);
        }
      }
);
      JmeClientMain.getFrame().addToEditMenu(instrumentFrameMI);
    }
  }
);
  instrumentation=new DefaultInstrumentation(ClientContextJME.getWorldManager());
}

Fixed version (ground truth):
public void initialize(ServerSessionManager loginManager){
  String serverHostAndPort=loginManager.getServerNameAndPort();
  String baseURL="String_Node_Str" + serverHostAndPort + "String_Node_Str";
  WorldManager worldManager=ClientContextJME.getWorldManager();
  worldManager.addUserData(Repository.class,new Repository(worldManager,baseURL,ClientContext.getUserDirectory("String_Node_Str")));
  ClientContextJME.getAvatarRenderManager().registerRenderer(AvatarImiJME.class);
  ClientContextJME.getViewManager().addViewManagerListener(new ViewManagerListener(){
    public void primaryViewCellChanged(    ViewCell oldViewCell,    ViewCell newViewCell){
      if (oldViewCell != null) {
        Logger.getAnonymousLogger().severe("String_Node_Str");
        return;
      }
      CellRenderer rend=newViewCell.getCellRenderer(Cell.RendererType.RENDERER_JME);
      if (!(rend instanceof AvatarImiJME))       return;
      final AvatarImiJME avatar=(AvatarImiJME)rend;
      if (testPanelRef == null || testPanelRef.get() == null) {
      }
 else {
        testPanelRef.get().setAvatarCharactar(avatar.getAvatarCharacter());
      }
      JMenuItem avatarControlFrameMI=new JMenuItem("String_Node_Str");
      avatarControlFrameMI.addActionListener(new ActionListener(){
        public void actionPerformed(        ActionEvent e){
          if (testPanelRef == null || testPanelRef.get() == null) {
            AvatarTestPanel test=new AvatarTestPanel();
            JFrame f=new JFrame("String_Node_Str");
            f.getContentPane().add(test);
            f.pack();
            f.setVisible(true);
            f.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
            test.setAvatarCharactar(avatar.getAvatarCharacter());
            testPanelRef=new WeakReference(test);
          }
 else {
            SwingUtilities.getRoot(testPanelRef.get().getParent()).setVisible(true);
          }
        }
      }
);
      JmeClientMain.getFrame().addToEditMenu(avatarControlFrameMI);
      JMenuItem avatarConfigFrameMI=new JMenuItem("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);
          }
        }
      }
);
      JmeClientMain.getFrame().addToEditMenu(avatarConfigFrameMI);
      JMenuItem instrumentFrameMI=new JMenuItem("String_Node_Str");
      instrumentFrameMI.addActionListener(new ActionListener(){
        public void actionPerformed(        ActionEvent e){
          AvatarInstrumentation in=new AvatarInstrumentation(instrumentation);
          in.setVisible(true);
        }
      }
);
      JmeClientMain.getFrame().addToEditMenu(instrumentFrameMI);
    }
  }
);
  instrumentation=new DefaultInstrumentation(ClientContextJME.getWorldManager());
}