Program: 62322
Project: 62322
Buggy source:
/** 
 * Create contents of the dialog.
 */
private void createContents(){
  shell=new Shell(getParent(),getStyle());
  shell.setSize(326,201);
  shell.setText("String_Node_Str");
  Rectangle screenSize=shell.getParent().getBounds();
  Rectangle shellSize=shell.getBounds();
  shell.setLocation(screenSize.x + screenSize.width / 2 - shellSize.width / 2,screenSize.y + screenSize.height / 2 - shellSize.height / 2);
  TabFolder tabFolder=new TabFolder(shell,SWT.NONE);
  tabFolder.setBounds(10,10,300,121);
  TabItem tbtmString=new TabItem(tabFolder,SWT.NONE);
  tbtmString.setText("String_Node_Str");
  Composite composite=new Composite(tabFolder,SWT.NONE);
  tbtmString.setControl(composite);
  Label lblKey=new Label(composite,SWT.NONE);
  lblKey.setText("String_Node_Str");
  lblKey.setBounds(10,13,45,13);
  Label lblNewKey=new Label(composite,SWT.NONE);
  lblNewKey.setText("String_Node_Str");
  lblNewKey.setBounds(10,44,45,13);
  text_2=new Text(composite,SWT.BORDER);
  text_2.setBounds(62,41,220,19);
  text_2.setText(oldContainer);
  text_2.selectAll();
  text_2.setFocus();
  Label label_1=new Label(composite,SWT.NONE);
  label_1.setBounds(61,13,89,13);
  label_1.setText(server);
  Label lblDatabase=new Label(composite,SWT.NONE);
  lblDatabase.setText("String_Node_Str");
  lblDatabase.setBounds(156,13,45,13);
  Label label_3=new Label(composite,SWT.NONE);
  label_3.setBounds(223,13,45,13);
  label_3.setText(String.valueOf(db));
  final Button btnCheckButton=new Button(composite,SWT.CHECK);
  btnCheckButton.setSelection(true);
  btnCheckButton.setBounds(10,69,272,16);
  btnCheckButton.setText("String_Node_Str");
  Button button=new Button(shell,SWT.NONE);
  button.addMouseListener(new MouseAdapter(){
    @Override public void mouseUp(    MouseEvent e){
      String newContainer=text_2.getText();
      boolean overwritten=btnCheckButton.getSelection();
      if (newContainer.length() == 0) {
        MessageDialog.openError(shell,"String_Node_Str","String_Node_Str");
      }
 else {
        result=new RenameInfo(newContainer,overwritten);
        shell.dispose();
      }
    }
  }
);
  button.setText("String_Node_Str");
  button.setBounds(61,144,68,23);
  Button button_1=new Button(shell,SWT.NONE);
  button_1.addMouseListener(new MouseAdapter(){
    @Override public void mouseUp(    MouseEvent e){
      shell.dispose();
    }
  }
);
  button_1.setText("String_Node_Str");
  button_1.setBounds(188,144,68,23);
}

Fixed version (ground truth):
/** 
 * Create contents of the dialog.
 */
private void createContents(){
  shell=new Shell(getParent(),getStyle());
  shell.setSize(326,201);
  shell.setText("String_Node_Str");
  Rectangle screenSize=shell.getParent().getBounds();
  Rectangle shellSize=shell.getBounds();
  shell.setLocation(screenSize.x + screenSize.width / 2 - shellSize.width / 2,screenSize.y + screenSize.height / 2 - shellSize.height / 2);
  TabFolder tabFolder=new TabFolder(shell,SWT.NONE);
  tabFolder.setBounds(10,10,300,121);
  TabItem tbtmString=new TabItem(tabFolder,SWT.NONE);
  tbtmString.setText("String_Node_Str");
  Composite composite=new Composite(tabFolder,SWT.NONE);
  tbtmString.setControl(composite);
  Label lblKey=new Label(composite,SWT.NONE);
  lblKey.setText("String_Node_Str");
  lblKey.setBounds(10,13,45,13);
  Label lblNewKey=new Label(composite,SWT.NONE);
  lblNewKey.setText("String_Node_Str");
  lblNewKey.setBounds(10,44,45,13);
  text_2=new Text(composite,SWT.BORDER);
  text_2.setBounds(62,41,220,19);
  text_2.setText(oldContainer);
  text_2.selectAll();
  text_2.setFocus();
  text_2.addModifyListener(new ModifyListener(){
    public void modifyText(    ModifyEvent e){
      String newContainer=text_2.getText() == null ? "String_Node_Str" : text_2.getText();
      if (newContainer.equals(oldContainer))       button.setEnabled(false);
 else       button.setEnabled(true);
    }
  }
);
  Label label_1=new Label(composite,SWT.NONE);
  label_1.setBounds(61,13,89,13);
  label_1.setText(server);
  Label lblDatabase=new Label(composite,SWT.NONE);
  lblDatabase.setText("String_Node_Str");
  lblDatabase.setBounds(156,13,45,13);
  Label label_3=new Label(composite,SWT.NONE);
  label_3.setBounds(223,13,45,13);
  label_3.setText(String.valueOf(db));
  final Button btnCheckButton=new Button(composite,SWT.CHECK);
  btnCheckButton.setSelection(true);
  btnCheckButton.setBounds(10,69,272,16);
  btnCheckButton.setText("String_Node_Str");
  button=new Button(shell,SWT.NONE);
  button.setEnabled(false);
  button.addMouseListener(new MouseAdapter(){
    @Override public void mouseUp(    MouseEvent e){
      String newContainer=text_2.getText();
      boolean overwritten=btnCheckButton.getSelection();
      if (newContainer.length() == 0) {
        MessageDialog.openError(shell,"String_Node_Str","String_Node_Str");
      }
 else {
        result=new RenameInfo(newContainer,overwritten);
        shell.dispose();
      }
    }
  }
);
  button.setText("String_Node_Str");
  button.setBounds(61,144,68,23);
  Button button_1=new Button(shell,SWT.NONE);
  button_1.addMouseListener(new MouseAdapter(){
    @Override public void mouseUp(    MouseEvent e){
      shell.dispose();
    }
  }
);
  button_1.setText("String_Node_Str");
  button_1.setBounds(188,144,68,23);
}