public java.util.Set < TYPE_1 > METHOD_1 ( TYPE_2 key ) { java.util.Set < TYPE_1 > values = get ( key ) ; return values == null ? null : new TYPE_3 < TYPE_1 > ( values ) ; } 

public java.util.Set < TYPE_1 > METHOD_1 ( final TYPE_2 key ) { final java.util.Set < TYPE_1 > values = get ( key ) ; return values == null ? null : new TYPE_3 < TYPE_1 > ( values ) ; } 
