Program: 45422
Project: 45422
Buggy source:
/** 
 * {@inheritDoc}
 * @Override public String toString() { return getName(); } / Update all views with the current state of the window.
 */
protected void updateViews(){
  if (!isVisibleApp() && ((changeMask & (CHANGED_VISIBLE_APP | CHANGED_SIZE)) == 0)) {
    return;
  }
  logger.info("String_Node_Str" + "String_Node_Str" + getName());
  logger.info("String_Node_Str" + Integer.toHexString(changeMask));
  LinkedList<View2D> viewsCopy;
synchronized (this) {
    viewsCopy=(LinkedList<View2D>)views.clone();
  }
  for (  View2D view : viewsCopy) {
    if ((changeMask & CHANGED_TYPE) != 0) {
      View2D.Type viewType;
switch (type) {
case UNKNOWN:
        viewType=View2D.Type.UNKNOWN;
      break;
case PRIMARY:
    viewType=View2D.Type.PRIMARY;
  break;
case POPUP:
viewType=View2D.Type.POPUP;
break;
case SECONDARY:
viewType=View2D.Type.SECONDARY;
break;
default :
throw new RuntimeException("String_Node_Str" + this + "String_Node_Str"+ type);
}
view.setType(viewType,false);
}
if ((changeMask & CHANGED_PARENT) != 0) {
View2D parentView=null;
if (parent != null) {
parentView=parent.getView(view.getDisplayer());
}
view.setParent(parentView,false);
}
if ((changeMask & CHANGED_OFFSET) != 0) {
view.setOffset(offset,false);
view.setPixelOffset(pixelOffset,false);
}
if ((changeMask & CHANGED_VISIBLE_APP) != 0) {
view.setVisibleApp(visibleApp,false);
}
if ((changeMask & CHANGED_SIZE) != 0) {
updateTexture();
view.setSizeApp(size,false);
}
if ((changeMask & CHANGED_DECORATED) != 0) {
view.setDecorated(decorated,false);
}
if ((changeMask & CHANGED_TITLE) != 0) {
view.setTitle(title,false);
}
if ((changeMask & CHANGED_USER_RESIZABLE) != 0) {
view.setUserResizable(userResizable,false);
}
if ((changeMask & CHANGED_STACK) != 0) {
view.stackChanged(false);
}
if ((changeMask & CHANGED_USER_TRANSFORM_CELL) != 0 && view instanceof View2DCell) {
if (userTransformCell != null) {
((View2DCell)view).setUserTransformCellLocal(userTransformCell);
}
}
view.update();
}
logger.info("String_Node_Str" + getName());
changeMask=0;
}

Fixed version (ground truth):
/** 
 * {@inheritDoc}
 * @Override public String toString() { return getName(); } / Update all views with the current state of the window.
 */
protected void updateViews(){
  if (!isVisibleApp() && ((changeMask & (CHANGED_VISIBLE_APP | CHANGED_SIZE)) == 0)) {
    return;
  }
  logger.info("String_Node_Str" + "String_Node_Str" + getName());
  logger.info("String_Node_Str" + Integer.toHexString(changeMask));
  LinkedList<View2D> viewsCopy;
synchronized (this) {
    viewsCopy=(LinkedList<View2D>)views.clone();
  }
  for (  View2D view : viewsCopy) {
    if ((changeMask & CHANGED_TYPE) != 0) {
      View2D.Type viewType;
switch (type) {
case UNKNOWN:
        viewType=View2D.Type.UNKNOWN;
      break;
case PRIMARY:
    viewType=View2D.Type.PRIMARY;
  break;
case POPUP:
viewType=View2D.Type.POPUP;
break;
case SECONDARY:
viewType=View2D.Type.SECONDARY;
break;
default :
throw new RuntimeException("String_Node_Str" + this + "String_Node_Str"+ type);
}
view.setType(viewType,false);
}
if ((changeMask & CHANGED_PARENT) != 0) {
View2D parentView=null;
if (parent != null) {
parentView=parent.getView(view.getDisplayer());
}
view.setParent(parentView,false);
}
if ((changeMask & CHANGED_OFFSET) != 0) {
view.setOffset(offset,false);
view.setPixelOffset(pixelOffset,false);
}
if ((changeMask & CHANGED_VISIBLE_APP) != 0) {
view.setVisibleApp(visibleApp,false);
}
if ((changeMask & CHANGED_SIZE) != 0) {
updateTexture();
view.setSizeApp(size,false);
}
if ((changeMask & CHANGED_DECORATED) != 0) {
view.setDecorated(decorated,false);
}
if ((changeMask & CHANGED_TITLE) != 0) {
view.setTitle(title,false);
}
if ((changeMask & CHANGED_USER_RESIZABLE) != 0) {
view.setUserResizable(userResizable,false);
}
if ((changeMask & CHANGED_STACK) != 0) {
view.stackChanged(false);
}
if ((changeMask & CHANGED_USER_TRANSFORM_CELL) != 0 && view instanceof View2DCell) {
if (userTransformCell != null) {
((View2DCell)view).setUserTransformCellLocal(userTransformCell);
}
}
view.update();
view.updateFrame();
}
logger.info("String_Node_Str" + getName());
changeMask=0;
}