Program: 68415
Project: 68415
Buggy source:
private void initColorBuilder(Composite parent,int style,boolean isFormStyle){
  setLayout(WidgetUtil.createSpaceGridLayout(2,1));
  if (isFormStyle)   ((GridLayout)getLayout()).horizontalSpacing=3;
  colorSelector=new ColorSelector(this);
  GridData data=new GridData();
  data.widthHint=50;
  data.horizontalAlignment=GridData.HORIZONTAL_ALIGN_BEGINNING;
  colorSelector.getButton().setLayoutData(data);
  colorSelector.getButton().setToolTipText(Messages.getString("String_Node_Str"));
  colorSelector.addListener(new IPropertyChangeListener(){
    public void propertyChange(    PropertyChangeEvent event){
      predefinedColor=null;
      processAction(colorSelector.getColorValue());
    }
  }
);
  if (isFormStyle)   combo=FormWidgetFactory.getInstance().createCCombo(this,false);
 else {
    combo=new CCombo(this,SWT.DROP_DOWN);
    combo.setVisibleItemCount(30);
  }
  data=new GridData();
  data.horizontalAlignment=GridData.FILL;
  data.grabExcessHorizontalSpace=true;
  combo.setLayoutData(data);
  combo.add(NONE_CHOICE);
  combo.addFocusListener(new FocusListener(){
    public void focusGained(    org.eclipse.swt.events.FocusEvent e){
      handleComboFocusGainedEvent(e);
    }
    public void focusLost(    org.eclipse.swt.events.FocusEvent e){
      handleComboFocusLostEvent(e);
    }
  }
);
  combo.addSelectionListener(new SelectionListener(){
    public void widgetSelected(    SelectionEvent e){
      handleComboSelectedEvent(e);
    }
    public void widgetDefaultSelected(    SelectionEvent e){
      handleComboDefaultSelectedEvent(e);
    }
  }
);
  initAccessible();
}

Fixed version (ground truth):
private void initColorBuilder(Composite parent,int style,boolean isFormStyle){
  setLayout(WidgetUtil.createSpaceGridLayout(2,1));
  if (isFormStyle)   ((GridLayout)getLayout()).horizontalSpacing=3;
  colorSelector=new ColorSelector(this);
  GridData data=new GridData();
  data.horizontalAlignment=GridData.HORIZONTAL_ALIGN_BEGINNING;
  colorSelector.getButton().setLayoutData(data);
  colorSelector.getButton().setToolTipText(Messages.getString("String_Node_Str"));
  colorSelector.addListener(new IPropertyChangeListener(){
    public void propertyChange(    PropertyChangeEvent event){
      predefinedColor=null;
      processAction(colorSelector.getColorValue());
    }
  }
);
  if (isFormStyle)   combo=FormWidgetFactory.getInstance().createCCombo(this,false);
 else {
    combo=new CCombo(this,SWT.DROP_DOWN);
    combo.setVisibleItemCount(30);
  }
  data=new GridData();
  data.horizontalAlignment=GridData.FILL;
  data.grabExcessHorizontalSpace=true;
  combo.setLayoutData(data);
  combo.add(NONE_CHOICE);
  combo.addFocusListener(new FocusListener(){
    public void focusGained(    org.eclipse.swt.events.FocusEvent e){
      handleComboFocusGainedEvent(e);
    }
    public void focusLost(    org.eclipse.swt.events.FocusEvent e){
      handleComboFocusLostEvent(e);
    }
  }
);
  combo.addSelectionListener(new SelectionListener(){
    public void widgetSelected(    SelectionEvent e){
      handleComboSelectedEvent(e);
    }
    public void widgetDefaultSelected(    SelectionEvent e){
      handleComboDefaultSelectedEvent(e);
    }
  }
);
  initAccessible();
}