computes a hash code as specified by java.util.map.entry #hashcode . concode_field_sep V value concode_elem_sep K key concode_field_sep K getKey concode_elem_sep V getValue concode_elem_sep boolean equals concode_elem_sep V setValue concode_elem_sep String toString concode_elem_sep void setValueInternal
int function ( ) { return ( ( key == null ) ? 0 : key . hashCode ( ) ) ^ ( ( value == null ) ? 0 : value . hashCode ( ) ) ; }