private void METHOD_1 ( TYPE_1 f ) { <BUG> f . METHOD_2 ( true ) ;if ( ( f . METHOD_3 ( ) ) == null ) {VAR_1 . add ( f , VAR_2 ) ;}METHOD_4 ( ) ;</BUG> }
private void METHOD_1 ( TYPE_1 f ) { this . METHOD_1 ( f , VAR_2 ) ; } 
