public static final < TYPE_1 extends TYPE_2 > TYPE_1 METHOD_1 ( final TYPE_1 VAR_1 ) { <BUG> VAR_2 . add ( VAR_1 ) ;</BUG> return VAR_1 ; }
public static final < TYPE_1 extends TYPE_2 > TYPE_1 METHOD_1 ( final TYPE_1 VAR_1 ) { return VAR_1 ; } 
