Program: 48162
Project: 48162
Buggy source:
protected void addListInputItem(@Nonnull String name,@Nullable String description,final @Nonnull String property){
  JLabel label=addLabel(name,description);
  String values=properties.getProperty(property);
  String[] entries=values.split("String_Node_Str");
  Vector<Vector<String>> rowData=new Vector<Vector<String>>();
  Vector<String> columnData=new Vector<String>();
  columnData.add("String_Node_Str");
  columnData.add("String_Node_Str");
  final DefaultTableModel model=new DefaultTableModel(){
    @Override public void setValueAt(    Object aValue,    int row,    int column){
      super.setValueAt(aValue,row,column);
      if (!aValue.toString().trim().isEmpty()) {
        if (shouldAddRow(row,column)) {
          addRow(new Object[]{});
        }
      }
    }
    private boolean shouldAddRow(    int lastEditedRow,    int lastEditedColumn){
      return lastEditedRow == getRowCount() - 1;
    }
  }
;
  model.addTableModelListener(new TableModelListener(){
    @Override public void tableChanged(    TableModelEvent e){
      StringBuilder sb=new StringBuilder();
      for (int rowNumber=0; rowNumber < model.getRowCount(); rowNumber++) {
        for (int columnNumber=0; columnNumber < model.getColumnCount(); columnNumber++) {
          Object valueAt=model.getValueAt(rowNumber,columnNumber);
          if (valueAt != null && !valueAt.toString().trim().isEmpty()) {
            sb.append(valueAt.toString());
            if (columnNumber == model.getColumnCount() - 1) {
              sb.append("String_Node_Str");
            }
 else {
              sb.append("String_Node_Str");
            }
          }
        }
      }
      properties.setProperty(property,sb.toString());
    }
  }
);
  for (  String entry : entries) {
    if (entry.split("String_Node_Str").length < 2) {
      continue;
    }
    String key=entry.split("String_Node_Str")[0];
    String value=entry.split("String_Node_Str")[1];
    Vector<String> row=new Vector<String>();
    row.add(key);
    row.add(value);
    rowData.add(row);
  }
  JTable jTable=new JTable(model);
  model.setDataVector(rowData,columnData);
  model.addRow(new Object[]{});
  fieldLabels.put(jTable,label);
  addComponent(jTable);
  itemIdx++;
  return;
}

Fixed version (ground truth):
protected void addListInputItem(@Nonnull String name,@Nullable String description,final @Nonnull String property){
  JLabel label=addLabel(name,description);
  String values=properties.getProperty(property);
  String[] entries;
  if (values == null) {
    entries=new String[0];
  }
 else {
    entries=values.split("String_Node_Str");
  }
  Vector<Vector<String>> rowData=new Vector<Vector<String>>();
  Vector<String> columnData=new Vector<String>();
  columnData.add("String_Node_Str");
  columnData.add("String_Node_Str");
  final DefaultTableModel model=new DefaultTableModel(){
    @Override public void setValueAt(    Object aValue,    int row,    int column){
      super.setValueAt(aValue,row,column);
      if (!aValue.toString().trim().isEmpty()) {
        if (shouldAddRow(row,column)) {
          addRow(new Object[]{});
        }
      }
    }
    private boolean shouldAddRow(    int lastEditedRow,    int lastEditedColumn){
      return lastEditedRow == getRowCount() - 1;
    }
  }
;
  model.addTableModelListener(new TableModelListener(){
    @Override public void tableChanged(    TableModelEvent e){
      StringBuilder sb=new StringBuilder();
      for (int rowNumber=0; rowNumber < model.getRowCount(); rowNumber++) {
        for (int columnNumber=0; columnNumber < model.getColumnCount(); columnNumber++) {
          Object valueAt=model.getValueAt(rowNumber,columnNumber);
          if (valueAt != null && !valueAt.toString().trim().isEmpty()) {
            sb.append(valueAt.toString());
            if (columnNumber == model.getColumnCount() - 1) {
              sb.append("String_Node_Str");
            }
 else {
              sb.append("String_Node_Str");
            }
          }
        }
      }
      properties.setProperty(property,sb.toString());
    }
  }
);
  for (  String entry : entries) {
    if (entry.split("String_Node_Str").length < 2) {
      continue;
    }
    String key=entry.split("String_Node_Str")[0];
    String value=entry.split("String_Node_Str")[1];
    Vector<String> row=new Vector<String>();
    row.add(key);
    row.add(value);
    rowData.add(row);
  }
  JTable jTable=new JTable(model);
  model.setDataVector(rowData,columnData);
  model.addRow(new Object[]{});
  fieldLabels.put(jTable,label);
  addComponent(jTable);
  itemIdx++;
  return;
}