question: public StringBuilder encodeBody ( StringBuilder retval ) { if ( address . getAddressType ( ) == AddressImpl . ADDRESS_SPEC ) { retval . append ( LESS_THAN ) ; } address . encode ( retval ) ; if ( address . getAddressType ( ) == AddressImpl . ADDRESS_SPEC ) { retval . append ( GREATER_THAN ) ; } return retval ; }
target:  Encode into canonical form.