Program: 77014
Project: 77014
Buggy source:
protected boolean initDialog(){
  if (inputGroup.getName() != null) {
    nameEditor.setText(inputGroup.getName());
  }
  refreshColumnList();
  setKeyExpression(inputGroup.getKeyExpr());
  int index=getIntervalTypeIndex(inputGroup.getInterval());
  intervalType.select(index);
  if (index == 0) {
    intervalRange.setEnabled(false);
    intervalBaseButton.setEnabled(false);
    intervalBaseText.setEnabled(false);
  }
 else {
    intervalRange.setEnabled(true);
    BigDecimal value=new BigDecimal(inputGroup.getIntervalRange());
    value=value.movePointRight(intervalRange.getDigits());
    intervalRange.setSelection(value.intValue());
    if (getColumnType() == String.class) {
      intervalBaseButton.setEnabled(false);
      intervalBaseText.setEnabled(false);
    }
 else {
      intervalBaseButton.setEnabled(true);
      intervalBaseButton.setSelection(inputGroup.getIntervalBase() != null);
      intervalBaseText.setEnabled(intervalBaseButton.getSelection());
      if (inputGroup.getIntervalBase() != null) {
        intervalBaseText.setText(inputGroup.getIntervalBase());
      }
    }
  }
  if (DesignChoiceConstants.SORT_DIRECTION_ASC.equals(inputGroup.getSortDirection())) {
    ascending.setSelection(true);
  }
 else {
    descending.setSelection(true);
  }
  List list=new ArrayList(1);
  list.add(inputGroup);
  tocEditor.setText(UIUtil.convertToGUIString(inputGroup.getTocExpression()));
  index=getPagebreakBeforeIndex(inputGroup.getPageBreakBefore());
  if (index < 0 || index >= pagebreakBeforeCombo.getItemCount()) {
    pagebreakBeforeCombo.setText(inputGroup.getPageBreakBefore());
  }
 else {
    pagebreakBeforeCombo.select(index);
  }
  index=getPagebreakAfterIndex(inputGroup.getPageBreakAfter());
  if (index < 0 || index >= pagebreakAfterCombo.getItemCount()) {
    pagebreakAfterCombo.setText(inputGroup.getPageBreakAfter());
  }
 else {
    pagebreakAfterCombo.select(index);
  }
  if (inputGroup.repeatHeader()) {
    repeatHeaderButton.setSelection(true);
  }
  hideDetail.setSelection(inputGroup.hideDetail());
  return true;
}

Fixed version (ground truth):
protected boolean initDialog(){
  if (inputGroup.getName() != null) {
    nameEditor.setText(inputGroup.getName());
  }
  refreshColumnList();
  setKeyExpression(inputGroup.getKeyExpr());
  int index=getIntervalTypeIndex(inputGroup.getInterval());
  intervalType.select(index);
  if (index == 0) {
    intervalRange.setEnabled(false);
    intervalBaseButton.setEnabled(false);
    intervalBaseText.setEnabled(false);
  }
 else {
    intervalRange.setEnabled(true);
    if (inputGroup != null) {
      PropertyHandle property=inputGroup.getPropertyHandle(GroupElement.INTERVAL_RANGE_PROP);
      if (property != null) {
        intervalRange.setText(property.getStringValue());
      }
    }
    if (getColumnType() == String.class) {
      intervalBaseButton.setEnabled(false);
      intervalBaseText.setEnabled(false);
    }
 else {
      intervalBaseButton.setEnabled(true);
      intervalBaseButton.setSelection(inputGroup.getIntervalBase() != null);
      intervalBaseText.setEnabled(intervalBaseButton.getSelection());
      if (inputGroup.getIntervalBase() != null) {
        intervalBaseText.setText(inputGroup.getIntervalBase());
      }
    }
  }
  if (DesignChoiceConstants.SORT_DIRECTION_ASC.equals(inputGroup.getSortDirection())) {
    ascending.setSelection(true);
  }
 else {
    descending.setSelection(true);
  }
  List list=new ArrayList(1);
  list.add(inputGroup);
  tocEditor.setText(UIUtil.convertToGUIString(inputGroup.getTocExpression()));
  index=getPagebreakBeforeIndex(inputGroup.getPageBreakBefore());
  if (index < 0 || index >= pagebreakBeforeCombo.getItemCount()) {
    pagebreakBeforeCombo.setText(inputGroup.getPageBreakBefore());
  }
 else {
    pagebreakBeforeCombo.select(index);
  }
  index=getPagebreakAfterIndex(inputGroup.getPageBreakAfter());
  if (index < 0 || index >= pagebreakAfterCombo.getItemCount()) {
    pagebreakAfterCombo.setText(inputGroup.getPageBreakAfter());
  }
 else {
    pagebreakAfterCombo.select(index);
  }
  if (inputGroup.repeatHeader()) {
    repeatHeaderButton.setSelection(true);
  }
  hideDetail.setSelection(inputGroup.hideDetail());
  return true;
}