{"xparam3", null},{"xparam4","value=4"}
}
};
public static void main (String args[]) {
MessageHeader head = createMessageHeader (s1);
Iterator iter = head.multiValueIterator ("Foo");
checkHeader (iter, s1_Foo);
iter = head.multiValueIterator ("Fub");
checkHeader (iter, s1_Fub);
HeaderParser hp = new HeaderParser (s2).subsequence (1,12);
check (hp, s23_expect);