code: public void set(AsciiString name, String value){
          if(name==null)
              return;
          if(value==null){
              remove(name);
              return;
          }
          Header head = entry(name, true);
          if(head.value==null)
              head.value = value;
          else{
              head.value = value;
              Header next = head.sameNext;
              head.sameNext = null;
              head.samePrev = head;
              removeSameNext(next);
          }
          assert validateLinks();
      }
docs: /*-------------------------------------------------[ Set ]---------------------------------------------------