code: @Override
      protected void firePropertyChange(final String propertyName, final Object oldValue, final Object newValue) {
          verbosely(new Runnable() {
              @Override
              public void run() {
                  ServerAttribute.super.firePropertyChange(propertyName, oldValue, newValue);
              }
  
          });
      }
docs: Overriding the standard behavior of PCLs such that firing is enforced to be done
  verbosely. This is safe since on the server side PCLs are never used for the control
  of the client notification as part of the OpenDolphin infrastructure
  (as opposed to the java client).
  That is: all remaining PCLs are application specific and _must_ be called verbosely.