Program: 53212
Project: 53212
Buggy source:
public static Widget getDefaultValueWidget(final AttributeCol52 ac,final boolean isReadOnly,final DefaultValueChangedEventHandler defaultValueChangedEventHandler){
  Widget editor=null;
  final AttributeCol52 originCol=ac;
  final String attributeName=ac.getAttribute();
  if (attributeName.equals(RuleAttributeWidget.RULEFLOW_GROUP_ATTR) || attributeName.equals(RuleAttributeWidget.AGENDA_GROUP_ATTR) || attributeName.equals(RuleAttributeWidget.ACTIVATION_GROUP_ATTR)|| attributeName.equals(RuleAttributeWidget.TIMER_ATTR)|| attributeName.equals(RuleAttributeWidget.CALENDARS_ATTR)) {
    final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_STRING);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52("String_Node_Str"));
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    tb.setValue(defaultValue.getStringValue());
    tb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      tb.addValueChangeHandler(new ValueChangeHandler<String>(){
        public void onValueChange(        ValueChangeEvent<String> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          defaultValue.setStringValue(tb.getValue());
          defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
        }
      }
);
    }
    editor=tb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.SALIENCE_ATTR)) {
    final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_NUMERIC_INTEGER);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(0));
    }
 else {
      assertIntegerDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final Integer numericValue=(Integer)defaultValue.getNumericValue();
    tb.setValue(numericValue == null ? "String_Node_Str" : numericValue.toString());
    tb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      tb.addValueChangeHandler(new ValueChangeHandler<String>(){
        public void onValueChange(        ValueChangeEvent<String> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          try {
            defaultValue.setNumericValue(new Integer(event.getValue()));
          }
 catch (          NumberFormatException nfe) {
            defaultValue.setNumericValue(new Integer("String_Node_Str"));
            tb.setValue("String_Node_Str");
          }
 finally {
            defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
          }
        }
      }
);
    }
    editor=tb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.DURATION_ATTR)) {
    final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_NUMERIC_LONG);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(0L));
    }
 else {
      assertLongDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final Long numericValue=(Long)defaultValue.getNumericValue();
    tb.setValue(numericValue == null ? "String_Node_Str" : numericValue.toString());
    tb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      tb.addValueChangeHandler(new ValueChangeHandler<String>(){
        public void onValueChange(        ValueChangeEvent<String> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          try {
            defaultValue.setNumericValue(new Long(event.getValue()));
          }
 catch (          NumberFormatException nfe) {
            defaultValue.setNumericValue(new Long("String_Node_Str"));
            tb.setValue("String_Node_Str");
          }
 finally {
            defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
          }
        }
      }
);
    }
    editor=tb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.NO_LOOP_ATTR) || attributeName.equals(RuleAttributeWidget.LOCK_ON_ACTIVE_ATTR) || attributeName.equals(RuleAttributeWidget.AUTO_FOCUS_ATTR)|| attributeName.equals(RuleAttributeWidget.ENABLED_ATTR)|| attributeName.equals(GuidedDecisionTable52.NEGATE_RULE_ATTR)) {
    final CheckBox cb=new CheckBox();
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(Boolean.FALSE));
    }
 else {
      assertBooleanDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final Boolean booleanValue=defaultValue.getBooleanValue();
    cb.setEnabled(!isReadOnly);
    if (booleanValue == null) {
      cb.setValue(false);
      defaultValue.setBooleanValue(Boolean.FALSE);
    }
 else {
      cb.setValue(booleanValue);
    }
    cb.addClickHandler(new ClickHandler(){
      public void onClick(      ClickEvent event){
        DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
        defaultValue.setBooleanValue(cb.getValue());
        defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
      }
    }
);
    editor=cb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.DATE_EFFECTIVE_ATTR) || attributeName.equals(RuleAttributeWidget.DATE_EXPIRES_ATTR)) {
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(new Date()));
    }
 else {
      assertDateDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    if (isReadOnly) {
      final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_STRING);
      tb.setValue(format.format(defaultValue.getDateValue()));
      tb.setEnabled(false);
    }
 else {
      final PopupDatePicker dp=new PopupDatePicker(false);
      final Date dateValue=defaultValue.getDateValue();
      dp.setValue(dateValue);
      dp.addValueChangeHandler(new ValueChangeHandler<Date>(){
        public void onValueChange(        ValueChangeEvent<Date> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          defaultValue.setDateValue(event.getValue());
          defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
        }
      }
);
      editor=dp;
    }
  }
 else   if (attributeName.equals(RuleAttributeWidget.DIALECT_ATTR)) {
    final ListBox lb=new ListBox();
    lb.addItem(RuleAttributeWidget.DIALECTS[0]);
    lb.addItem(RuleAttributeWidget.DIALECTS[1]);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(RuleAttributeWidget.DIALECTS[1]));
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final String stringValue=defaultValue.getStringValue();
    lb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      lb.addChangeHandler(new ChangeHandler(){
        @Override public void onChange(        ChangeEvent event){
          final int selectedIndex=lb.getSelectedIndex();
          if (selectedIndex < 0) {
            return;
          }
          DTCellValue52 newValue=new DTCellValue52(lb.getValue(selectedIndex));
          ac.setDefaultValue(newValue);
          defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(newValue,defaultValue));
        }
      }
);
    }
    if (stringValue == null || stringValue.isEmpty()) {
      lb.setSelectedIndex(1);
      defaultValue.setStringValue(RuleAttributeWidget.DIALECTS[1]);
    }
 else     if (stringValue.equals(RuleAttributeWidget.DIALECTS[0])) {
      lb.setSelectedIndex(0);
    }
 else     if (stringValue.equals(RuleAttributeWidget.DIALECTS[1])) {
      lb.setSelectedIndex(1);
    }
 else {
      lb.setSelectedIndex(1);
      defaultValue.setStringValue(RuleAttributeWidget.DIALECTS[1]);
    }
    editor=lb;
  }
  return editor;
}

Fixed version (ground truth):
public static Widget getDefaultValueWidget(final AttributeCol52 ac,final boolean isReadOnly,final DefaultValueChangedEventHandler defaultValueChangedEventHandler){
  Widget editor=null;
  final String attributeName=ac.getAttribute();
  if (attributeName.equals(RuleAttributeWidget.RULEFLOW_GROUP_ATTR) || attributeName.equals(RuleAttributeWidget.AGENDA_GROUP_ATTR) || attributeName.equals(RuleAttributeWidget.ACTIVATION_GROUP_ATTR)|| attributeName.equals(RuleAttributeWidget.TIMER_ATTR)|| attributeName.equals(RuleAttributeWidget.CALENDARS_ATTR)) {
    final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_STRING);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52("String_Node_Str"));
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    tb.setValue(defaultValue.getStringValue());
    tb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      tb.addValueChangeHandler(new ValueChangeHandler<String>(){
        public void onValueChange(        ValueChangeEvent<String> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          defaultValue.setStringValue(tb.getValue());
          defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
        }
      }
);
    }
    editor=tb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.SALIENCE_ATTR)) {
    final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_NUMERIC_INTEGER);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(0));
    }
 else {
      assertIntegerDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final Integer numericValue=(Integer)defaultValue.getNumericValue();
    tb.setValue(numericValue == null ? "String_Node_Str" : numericValue.toString());
    tb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      tb.addValueChangeHandler(new ValueChangeHandler<String>(){
        public void onValueChange(        ValueChangeEvent<String> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          try {
            defaultValue.setNumericValue(Integer.valueOf(event.getValue()));
          }
 catch (          NumberFormatException nfe) {
            defaultValue.setNumericValue(0);
            tb.setValue("String_Node_Str");
          }
 finally {
            defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
          }
        }
      }
);
    }
    editor=tb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.DURATION_ATTR)) {
    final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_NUMERIC_LONG);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(0L));
    }
 else {
      assertLongDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final Long numericValue=(Long)defaultValue.getNumericValue();
    tb.setValue(numericValue == null ? "String_Node_Str" : numericValue.toString());
    tb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      tb.addValueChangeHandler(new ValueChangeHandler<String>(){
        public void onValueChange(        ValueChangeEvent<String> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          try {
            defaultValue.setNumericValue(Long.valueOf(event.getValue()));
          }
 catch (          NumberFormatException nfe) {
            defaultValue.setNumericValue(0L);
            tb.setValue("String_Node_Str");
          }
 finally {
            defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
          }
        }
      }
);
    }
    editor=tb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.NO_LOOP_ATTR) || attributeName.equals(RuleAttributeWidget.LOCK_ON_ACTIVE_ATTR) || attributeName.equals(RuleAttributeWidget.AUTO_FOCUS_ATTR)|| attributeName.equals(RuleAttributeWidget.ENABLED_ATTR)|| attributeName.equals(GuidedDecisionTable52.NEGATE_RULE_ATTR)) {
    final CheckBox cb=new CheckBox();
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(Boolean.FALSE));
    }
 else {
      assertBooleanDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final Boolean booleanValue=defaultValue.getBooleanValue();
    cb.setEnabled(!isReadOnly);
    if (booleanValue == null) {
      cb.setValue(false);
      defaultValue.setBooleanValue(Boolean.FALSE);
    }
 else {
      cb.setValue(booleanValue);
    }
    cb.addClickHandler(new ClickHandler(){
      public void onClick(      ClickEvent event){
        DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
        defaultValue.setBooleanValue(cb.getValue());
        defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
      }
    }
);
    editor=cb;
  }
 else   if (attributeName.equals(RuleAttributeWidget.DATE_EFFECTIVE_ATTR) || attributeName.equals(RuleAttributeWidget.DATE_EXPIRES_ATTR)) {
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(new Date()));
    }
 else {
      assertDateDefaultValue(ac.getDefaultValue());
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    if (isReadOnly) {
      final TextBox tb=TextBoxFactory.getTextBox(DataType.TYPE_STRING);
      tb.setValue(format.format(defaultValue.getDateValue()));
      tb.setEnabled(false);
    }
 else {
      final PopupDatePicker dp=new PopupDatePicker(false);
      final Date dateValue=defaultValue.getDateValue();
      dp.setValue(dateValue);
      dp.addValueChangeHandler(new ValueChangeHandler<Date>(){
        public void onValueChange(        ValueChangeEvent<Date> event){
          DTCellValue52 clonedDefaultValue=defaultValue.cloneDefaultValueCell();
          defaultValue.setDateValue(event.getValue());
          defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(defaultValue,clonedDefaultValue));
        }
      }
);
      editor=dp;
    }
  }
 else   if (attributeName.equals(RuleAttributeWidget.DIALECT_ATTR)) {
    final ListBox lb=new ListBox();
    lb.addItem(RuleAttributeWidget.DIALECTS[0]);
    lb.addItem(RuleAttributeWidget.DIALECTS[1]);
    if (ac.getDefaultValue() == null) {
      ac.setDefaultValue(new DTCellValue52(RuleAttributeWidget.DIALECTS[1]));
    }
    final DTCellValue52 defaultValue=ac.getDefaultValue();
    final String stringValue=defaultValue.getStringValue();
    lb.setEnabled(!isReadOnly);
    if (!isReadOnly) {
      lb.addChangeHandler(new ChangeHandler(){
        @Override public void onChange(        ChangeEvent event){
          final int selectedIndex=lb.getSelectedIndex();
          if (selectedIndex < 0) {
            return;
          }
          DTCellValue52 newValue=new DTCellValue52(lb.getValue(selectedIndex));
          ac.setDefaultValue(newValue);
          defaultValueChangedEventHandler.onDefaultValueChanged(new DefaultValueChangedEvent(newValue,defaultValue));
        }
      }
);
    }
    if (stringValue == null || stringValue.isEmpty()) {
      lb.setSelectedIndex(1);
      defaultValue.setStringValue(RuleAttributeWidget.DIALECTS[1]);
    }
 else     if (stringValue.equals(RuleAttributeWidget.DIALECTS[0])) {
      lb.setSelectedIndex(0);
    }
 else     if (stringValue.equals(RuleAttributeWidget.DIALECTS[1])) {
      lb.setSelectedIndex(1);
    }
 else {
      lb.setSelectedIndex(1);
      defaultValue.setStringValue(RuleAttributeWidget.DIALECTS[1]);
    }
    editor=lb;
  }
  return editor;
}