Program: 51820
Project: 51820
Buggy source:
@Override public JComponent getUI(final JButton create){
  JLabel prompt=new JLabel(bundle.getString("String_Node_Str"));
  name.setText(bundle.getString("String_Node_Str"));
  prompt.setLabelFor(name);
  name.selectAll();
  name.setColumns(COL_SIZE);
  name.getDocument().addDocumentListener(new DocumentListener(){
    @Override public void changedUpdate(    DocumentEvent e){
    }
    @Override public void insertUpdate(    DocumentEvent e){
      doAction();
    }
    @Override public void removeUpdate(    DocumentEvent e){
      doAction();
    }
    private boolean verify(    String input){
      return DataValidation.validateLength(input,MIN_LENGTH,MAX_LENGTH);
    }
    private void doAction(){
      boolean flag=verify(name.getText().trim());
      create.setEnabled(flag);
      message.setIcon((flag) ? null : MCTIcons.getErrorIcon(ICON_WIDTH,ICON_HEIGHT));
      message.setText((flag) ? "String_Node_Str" : ERRORMSG);
    }
  }
);
  name.addKeyListener(new KeyAdapter(){
    public void keyReleased(    KeyEvent e){
      name.setForeground(Color.BLACK);
    }
  }
);
  JPanel messagePanel=new JPanel();
  messagePanel.add(message);
  JPanel UIPanel=new JPanel();
  UIPanel.setLayout(new GridBagLayout());
  GridBagConstraints c=new GridBagConstraints();
  c.insets=new Insets(10,10,0,0);
  c.fill=GridBagConstraints.HORIZONTAL;
  c.anchor=GridBagConstraints.FIRST_LINE_START;
  c.gridy=0;
  c.weightx=0.01;
  UIPanel.add(prompt,c);
  c.gridx=1;
  c.weightx=0.99;
  c.insets=new Insets(10,0,0,10);
  UIPanel.add(name,c);
  c.gridx=0;
  c.gridy=1;
  c.weightx=1;
  c.gridwidth=2;
  c.insets=new Insets(0,10,0,10);
  c.gridx=0;
  c.gridy=2;
  c.weightx=1;
  c.gridwidth=2;
  UIPanel.add(messagePanel,c);
  UIPanel.setVisible(true);
  return UIPanel;
}

Fixed version (ground truth):
@Override public JComponent getUI(final JButton create){
  JLabel prompt=new JLabel(bundle.getString("String_Node_Str"));
  name.setText("String_Node_Str");
  prompt.setLabelFor(name);
  name.selectAll();
  name.setColumns(COL_SIZE);
  name.getDocument().addDocumentListener(new DocumentListener(){
    @Override public void changedUpdate(    DocumentEvent e){
    }
    @Override public void insertUpdate(    DocumentEvent e){
      doAction();
    }
    @Override public void removeUpdate(    DocumentEvent e){
      doAction();
    }
    private boolean verify(    String input){
      return DataValidation.validateLength(input,MIN_LENGTH,MAX_LENGTH);
    }
    private void doAction(){
      boolean flag=verify(name.getText().trim());
      create.setEnabled(flag);
      message.setIcon((flag) ? null : MCTIcons.getErrorIcon(ICON_WIDTH,ICON_HEIGHT));
      message.setText((flag) ? "String_Node_Str" : ERRORMSG);
    }
  }
);
  name.addKeyListener(new KeyAdapter(){
    public void keyReleased(    KeyEvent e){
      name.setForeground(Color.BLACK);
    }
  }
);
  JPanel messagePanel=new JPanel();
  messagePanel.add(message);
  JPanel UIPanel=new JPanel();
  UIPanel.setLayout(new GridBagLayout());
  GridBagConstraints c=new GridBagConstraints();
  c.insets=new Insets(10,10,0,0);
  c.fill=GridBagConstraints.HORIZONTAL;
  c.anchor=GridBagConstraints.FIRST_LINE_START;
  c.gridy=0;
  c.weightx=0.01;
  UIPanel.add(prompt,c);
  c.gridx=1;
  c.weightx=0.99;
  c.insets=new Insets(10,0,0,10);
  UIPanel.add(name,c);
  c.gridx=0;
  c.gridy=1;
  c.weightx=1;
  c.gridwidth=2;
  c.insets=new Insets(0,10,0,10);
  c.gridx=0;
  c.gridy=2;
  c.weightx=1;
  c.gridwidth=2;
  UIPanel.add(messagePanel,c);
  UIPanel.setVisible(true);
  return UIPanel;
}