Program: 25896
Project: 25896
Buggy source:
/** 
 * Constructor
 */
public BootstrapGridGenerator(){
  setSize(200,200);
  setBackground(Color.white);
  setLayout(new BorderLayout());
  setSize(500,500);
  northPanel=new JPanel(new BorderLayout());
  northPanel.setBackground(Color.white);
  JPanel pn1=new JPanel();
  JPanel pn2=new JPanel();
  pn1.setBackground(Color.white);
  pn2.setBackground(Color.white);
  titleLabel=new JLabel("String_Node_Str");
  titleLabel.setFont(new Font("String_Node_Str",Font.PLAIN,24));
  pn1.add(titleLabel);
  fileNameLabel=new JLabel("String_Node_Str");
  pn2.add(fileNameLabel);
  fileNameField=new JTextField(10);
  fileNameField.setText("String_Node_Str");
  pn2.add(fileNameField);
  pn2.add(Box.createRigidArea(new Dimension(20,0)));
  numberColumnsLabel=new JLabel("String_Node_Str");
  pn2.add(numberColumnsLabel);
  numberColumnsField=new JTextField(3);
  ((AbstractDocument)numberColumnsField.getDocument()).setDocumentFilter(new NumberDocumentFilter());
  numberColumnsField.setText("String_Node_Str");
  pn2.add(numberColumnsField);
  northPanel.add(pn1,BorderLayout.NORTH);
  northPanel.add(pn2,BorderLayout.SOUTH);
  add(northPanel,BorderLayout.NORTH);
  tabPane=new JTabbedPane();
  String colNames[]={"String_Node_Str","String_Node_Str"};
  String rowData[][]={{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"}};
  propertyTable=new TablePanel(rowData,colNames);
  tabPane.addTab("String_Node_Str",propertyTable);
  String colNames2[]={"String_Node_Str","String_Node_Str"};
  String rowData2[][]={{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"}};
  divisionTable=new TablePanel(rowData2,colNames2);
  tabPane.addTab("String_Node_Str",divisionTable);
  add(tabPane,BorderLayout.CENTER);
  southPanel=new JPanel();
  southPanel.setBackground(Color.white);
  generateButton=new JButton("String_Node_Str");
  generateButton.addActionListener(this);
  southPanel.add(generateButton);
  minBox=new JCheckBox();
  southPanel.add(minBox);
  minLabel=new JLabel("String_Node_Str");
  southPanel.add(minLabel);
  add(southPanel,BorderLayout.SOUTH);
  add(Box.createRigidArea(new Dimension(10,0)),BorderLayout.WEST);
  add(Box.createRigidArea(new Dimension(10,0)),BorderLayout.EAST);
}

Fixed version (ground truth):
/** 
 * Constructor.
 */
public BootstrapGridGenerator(){
  setBackground(Color.white);
  setLayout(new BorderLayout());
  setSize(500,500);
  northPanel=new JPanel(new BorderLayout());
  northPanel.setBackground(Color.white);
  JPanel pn1=new JPanel();
  JPanel pn2=new JPanel();
  pn1.setBackground(Color.white);
  pn2.setBackground(Color.white);
  titleLabel=new JLabel("String_Node_Str");
  titleLabel.setFont(new Font("String_Node_Str",Font.PLAIN,24));
  pn1.add(titleLabel);
  fileNameLabel=new JLabel("String_Node_Str");
  pn2.add(fileNameLabel);
  fileNameField=new JTextField(10);
  fileNameField.setText("String_Node_Str");
  pn2.add(fileNameField);
  pn2.add(Box.createRigidArea(new Dimension(20,0)));
  numberColumnsLabel=new JLabel("String_Node_Str");
  pn2.add(numberColumnsLabel);
  numberColumnsField=new JTextField(3);
  ((AbstractDocument)numberColumnsField.getDocument()).setDocumentFilter(new NumberDocumentFilter());
  numberColumnsField.setText("String_Node_Str");
  pn2.add(numberColumnsField);
  northPanel.add(pn1,BorderLayout.NORTH);
  northPanel.add(pn2,BorderLayout.SOUTH);
  add(northPanel,BorderLayout.NORTH);
  tabPane=new JTabbedPane();
  String colNames[]={"String_Node_Str","String_Node_Str"};
  String rowData[][]={{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"}};
  propertyTable=new TablePanel(rowData,colNames);
  tabPane.addTab("String_Node_Str",propertyTable);
  String colNames2[]={"String_Node_Str","String_Node_Str"};
  String rowData2[][]={{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"}};
  divisionTable=new TablePanel(rowData2,colNames2);
  tabPane.addTab("String_Node_Str",divisionTable);
  add(tabPane,BorderLayout.CENTER);
  southPanel=new JPanel();
  southPanel.setBackground(Color.white);
  generateButton=new JButton("String_Node_Str");
  generateButton.addActionListener(this);
  southPanel.add(generateButton);
  minBox=new JCheckBox();
  southPanel.add(minBox);
  minLabel=new JLabel("String_Node_Str");
  southPanel.add(minLabel);
  add(southPanel,BorderLayout.SOUTH);
  add(Box.createRigidArea(new Dimension(10,0)),BorderLayout.WEST);
  add(Box.createRigidArea(new Dimension(10,0)),BorderLayout.EAST);
}