public void METHOD_1 ( TYPE_1 VAR_1 ) throws TYPE_2 { if ( VAR_1 == null ) { this . VAR_1 = VAR_1 ; } else { throw new TYPE_2 ( ) ; } } 

public void METHOD_1 ( TYPE_1 VAR_1 ) throws TYPE_2 { if ( ( this . VAR_1 ) == null ) { this . VAR_1 = VAR_1 ; } else { throw new TYPE_2 ( ) ; } } 
