Program: 40821
Project: 40821
Buggy source:
private void updateViews(){
  final Set<Short> channels=mChannelSubscriptionListener.getChannels();
  SwingUtilities.invokeLater(new Runnable(){
    @Override public void run(){
      removeAll();
      mContentContainer.removeAll();
      add(new JLabel("String_Node_Str"));
      if (channels.isEmpty()) {
        add(new JLabel("String_Node_Str"));
      }
      add(Box.createRigidArea(new Dimension(0,5)));
      add(mContentContainer);
      for (      final short channelId : channels) {
        Set<String> subscribers=mChannelSubscriptionListener.getSubscribersOfChannel(channelId);
        JLabel comp=new JLabel("String_Node_Str" + channelId + "String_Node_Str"+ subscribers.size()+ "String_Node_Str");
        JButton subscribeButton=new JButton("String_Node_Str");
        subscribeButton.setBorder(BorderFactory.createRaisedBevelBorder());
        subscribeButton.setToolTipText("String_Node_Str");
        subscribeButton.addActionListener(new ActionListener(){
          @Override public void actionPerformed(          ActionEvent e){
            if (mBlaubotKingdom != null) {
              IBlaubotChannel chan=mBlaubotKingdom.getChannelManager().createOrGetChannel(channelId);
              chan.subscribe();
            }
          }
        }
);
        JButton unsubscribeButton=new JButton("String_Node_Str");
        unsubscribeButton.setToolTipText("String_Node_Str");
        unsubscribeButton.setBorder(BorderFactory.createRaisedBevelBorder());
        unsubscribeButton.addActionListener(new ActionListener(){
          @Override public void actionPerformed(          ActionEvent e){
            if (mBlaubotKingdom != null) {
              IBlaubotChannel chan=mBlaubotKingdom.getChannelManager().createOrGetChannel(channelId);
              chan.unsubscribe();
            }
          }
        }
);
        JPanel buttonPanel=new JPanel();
        buttonPanel.setLayout(new FlowLayout());
        subscribeButton.setMargin(new java.awt.Insets(1,1,1,1));
        unsubscribeButton.setMargin(new java.awt.Insets(1,1,1,1));
        buttonPanel.add(subscribeButton);
        buttonPanel.add(unsubscribeButton);
        JPanel panel=new JPanel();
        panel.setAlignmentX(Component.LEFT_ALIGNMENT);
        panel.setLayout(new BoxLayout(panel,BoxLayout.Y_AXIS));
        panel.add(Box.createRigidArea(new Dimension(5,0)));
        panel.add(comp);
        panel.add(buttonPanel);
        panel.setToolTipText("String_Node_Str" + subscribers);
        mContentContainer.add(panel);
      }
      updateUI();
    }
  }
);
}

Fixed version (ground truth):
private void updateViews(){
  final Set<Short> channels=mChannelSubscriptionListener.getChannels();
  SwingUtilities.invokeLater(new Runnable(){
    @Override public void run(){
      removeAll();
      mContentContainer.removeAll();
      add(new JLabel("String_Node_Str"));
      if (channels.isEmpty()) {
        add(new JLabel("String_Node_Str"));
      }
      add(Box.createRigidArea(new Dimension(0,5)));
      add(mContentContainer);
      for (      final short channelId : channels) {
        Set<String> subscribers=mChannelSubscriptionListener.getSubscribersOfChannel(channelId);
        JLabel comp=new JLabel("String_Node_Str" + channelId + "String_Node_Str"+ subscribers.size()+ "String_Node_Str");
        JButton subscribeButton=new JButton("String_Node_Str");
        subscribeButton.setBorder(BorderFactory.createRaisedBevelBorder());
        subscribeButton.setToolTipText("String_Node_Str");
        subscribeButton.addActionListener(new ActionListener(){
          @Override public void actionPerformed(          ActionEvent e){
            if (mBlaubotChannelManager != null) {
              IBlaubotChannel chan=mBlaubotChannelManager.createOrGetChannel(channelId);
              chan.subscribe();
            }
          }
        }
);
        JButton unsubscribeButton=new JButton("String_Node_Str");
        unsubscribeButton.setToolTipText("String_Node_Str");
        unsubscribeButton.setBorder(BorderFactory.createRaisedBevelBorder());
        unsubscribeButton.addActionListener(new ActionListener(){
          @Override public void actionPerformed(          ActionEvent e){
            if (mBlaubotChannelManager != null) {
              IBlaubotChannel chan=mBlaubotChannelManager.createOrGetChannel(channelId);
              chan.unsubscribe();
            }
          }
        }
);
        JPanel buttonPanel=new JPanel();
        buttonPanel.setLayout(new FlowLayout());
        subscribeButton.setMargin(new java.awt.Insets(1,1,1,1));
        unsubscribeButton.setMargin(new java.awt.Insets(1,1,1,1));
        buttonPanel.add(subscribeButton);
        buttonPanel.add(unsubscribeButton);
        JPanel panel=new JPanel();
        panel.setAlignmentX(Component.LEFT_ALIGNMENT);
        panel.setLayout(new BoxLayout(panel,BoxLayout.Y_AXIS));
        panel.add(Box.createRigidArea(new Dimension(5,0)));
        panel.add(comp);
        panel.add(buttonPanel);
        panel.setToolTipText("String_Node_Str" + subscribers);
        mContentContainer.add(panel);
      }
      updateUI();
    }
  }
);
}