@Override
 public void onCheckIn() {
   super.onCheckIn();
   AdviserManager.getInstance().removeAdviser(this.m_watcherContainerAdviser);
   this.m_align = null;
   this.m_target = null;
   this.m_watcherContainerAdviser = null;
   MasterRootContainer.getInstance().removeEventListener(Events.RESIZED, this, false);
 }
 @Override
 public int validateAdviser() {
   return AdviserManager.getInstance().addAdviser(this.m_watcherContainerAdviser);
 }