Program: 21554
Project: 21554
Buggy source:
@Override public JComponent layoutDialogContent(){
  JPanel cp=new JPanel(new MigLayout("String_Node_Str","String_Node_Str"));
  messageArea=new JTextPane();
  messageArea.setBorder(null);
  messageArea.setBackground(null);
  messageArea.setOpaque(false);
  messageArea.setText(this.message);
  messageArea.setEditable(false);
  messageArea.putClientProperty("String_Node_Str",Boolean.FALSE);
  cp.add(messageArea,"String_Node_Str");
  cp.add(new JLabel(APPWORKUTILS.LOGINDIALOG_LABEL_USERNAME.s()),"String_Node_Str");
  login=new JTextField();
  login.setBorder(BorderFactory.createEtchedBorder());
  login.setText(this.defaultMessage);
  login.addKeyListener(this);
  login.addMouseListener(this);
  cp.add(login,"String_Node_Str");
  cp.add(new JLabel(APPWORKUTILS.LOGINDIALOG_LABEL_PASSWORD.s()),"String_Node_Str");
  password=new JPasswordField();
  password.setBorder(BorderFactory.createEtchedBorder());
  password.addKeyListener(this);
  password.addMouseListener(this);
  cp.add(password,"String_Node_Str");
  cp.add(rpasswordLabel=new JLabel(APPWORKUTILS.LOGINDIALOG_LABEL_PASSWORD_REPEAT.s()),"String_Node_Str");
  rpassword=new JPasswordField();
  rpassword.setBorder(BorderFactory.createEtchedBorder());
  rpassword.addKeyListener(this);
  rpassword.addMouseListener(this);
  cp.add(rpassword,"String_Node_Str");
  rpassword.setVisible(BinaryLogic.containsAll(this.flagMask,FORCE_REGISTER));
  rpasswordLabel.setVisible(BinaryLogic.containsAll(this.flagMask,FORCE_REGISTER));
  if (register) {
    registerBtn=new JLabel(APPWORKUTILS.LOGINDIALOG_BUTTON_REGISTER.s());
    registerBtn.setBorder(BorderFactory.createMatteBorder(0,0,1,0,cp.getBackground().darker().darker()));
    registerBtn.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
    registerBtn.addMouseListener(this);
    cp.add(registerBtn,"String_Node_Str");
  }
 else {
    cp.add(Box.createHorizontalGlue(),"String_Node_Str");
  }
  if (remember) {
    rem=new JCheckBox(APPWORKUTILS.LOGINDIALOG_CHECKBOX_REMEMBER.s());
    rem.setHorizontalTextPosition(SwingConstants.LEFT);
    rem.setHorizontalAlignment(SwingConstants.RIGHT);
    cp.add(rem,"String_Node_Str");
  }
  return cp;
}

Fixed version (ground truth):
@Override public JComponent layoutDialogContent(){
  final JPanel contentpane=new JPanel();
  titleColor=getBackground().darker().darker();
  accid=new JTextField(10);
  accid.addCaretListener(this);
  pass=new JPasswordField(10);
  save=new JCheckBox();
  contentpane.setLayout(new MigLayout("String_Node_Str","String_Node_Str","String_Node_Str"));
  contentpane.add(new JLabel(APPWORKUTILS.AccountNew_AccountNew_message.s()),"String_Node_Str");
  contentpane.add(addSettingName(APPWORKUTILS.AccountNew_layoutDialogContent_accountname.s()));
  contentpane.add(accid,"String_Node_Str");
  contentpane.add(addSettingName(APPWORKUTILS.AccountNew_layoutDialogContent_password.s()));
  contentpane.add(pass,"String_Node_Str");
  contentpane.add(addSettingName(APPWORKUTILS.AccountNew_layoutDialogContent_save.s()));
  contentpane.add(save,"String_Node_Str");
  accid.setText(preUser);
  pass.setText(prePass);
  save.setSelected(preSave);
  return contentpane;
}