void METHOD_1 ( TYPE_1 VAR_1 ) { this . VAR_1 = VAR_1 ; this . VAR_1 . METHOD_2 ( this ) ; } 

void METHOD_1 ( TYPE_1 VAR_1 ) { this . VAR_1 = VAR_1 ; if ( VAR_1 != null ) { this . VAR_1 . METHOD_2 ( this ) ; } } 
