check if two objects are equal . concode_field_sep int HASH_OFFSET concode_elem_sep int HASH_SEED concode_field_sep int hashCode concode_elem_sep int hashCode concode_elem_sep int hashCode
boolean function ( final Object arg0 , final Object arg1 ) { return arg0 == null ? arg1 == null : arg0 . equals ( arg1 ) ; }