protected void firePropertyChange(final String propertyName,final Object oldVal,final Object newVal){
  propertySupport.firePropertyChange(propertyName,oldVal,newVal);
}

protected void firePropertyChange ( final String propertyName , final Object oldVal , final Object newVal ) { propertySupport . firePropertyChange ( propertyName , oldVal , newVal ) ; }
send property change notification to attached listeners .
