public java.util.List < TYPE_1 > METHOD_1 ( TYPE_1 VAR_1 ) { <BUG> VAR_2 . METHOD_2 ( VAR_1 ) ;return null ;</BUG> }
public java.util.List < TYPE_1 > METHOD_1 ( TYPE_1 VAR_1 ) { return VAR_2 . METHOD_2 ( VAR_1 ) ; } 
