protected int METHOD_1 ( TYPE_1 < TYPE_2 > list ) { <BUG> if ( list == null ) return 0 ;</BUG> return ( VAR_1 ) * ( VAR_2 ) ; }
protected int METHOD_1 ( TYPE_1 < TYPE_2 > list ) { if ( list == null ) return - 1 ; return ( VAR_1 ) * ( VAR_2 ) ; } 
