code: public void complete(VirtualConnection vc, TCPReadRequestContext rsc) {
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "complete() called: vc=" + vc);
          }
          HttpOutboundServiceContextImpl mySC = (HttpOutboundServiceContextImpl) vc.getStateMap().get(CallbackIDs.CALLBACK_HTTPOSC);
  
          // keep reading and handling new data until either we're done
          // parsing headers or until we're waiting on a read to finish
          // Note: parseMessage will allocate the read buffers
          boolean rc = false;
          while (!rc && null != vc) {
              rc = handleNewData(mySC, vc);
              // if we're not done parsing, then read more data
              if (!rc) {
                  // read whatever is available
                  vc = rsc.read(1, this, false, mySC.getReadTimeout());
              }
          }
          // if rc is false, then this callback will be used later on when
          // the read completes, otherwise check the status code from the
          // response message
          if (rc) {
              StatusCodes status = mySC.getResponse().getStatusCode();
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
                  Tr.debug(tc, "100-continue scenario received " + status);
              }
              if (status.equals(StatusCodes.CONTINUE)) {
                  // got the 100-continue
                  mySC.resetRead();
                  mySC.getAppWriteCallback().complete(vc);
              } else {
                  // anything else, pass along the ExpectationFailedException
                  mySC.setPersistent(false);
                  mySC.getAppWriteCallback().error(vc, new ExpectationFailedException(status.getIntCode() + " " + mySC.getResponse().getReasonPhrase()));
              }
          }
      }
docs: When the response has been received, we need to parse the status line
  and verify that it was the "100 Continue". If it was, then pass along
  the notification to the application channel. If it was anything else,
  then pass an error up to the application channel using the specific
  Expectation-Failed exception.
  
  @param vc
  @param rsc