private boolean handleFault(int i) {
    Handler handler = _chain.get(i);

    boolean success = false;
    _invoked[i] = true;

    try {
      if (handler instanceof LogicalHandler) {
        _logicalContext.getMessage().setPayload(_source);
        success = handler.handleFault(_logicalContext);
        _source = _logicalContext.getMessage().getPayload();
      } else if (handler instanceof SOAPHandler) {
        try {
          _soapContext.setMessage(_source);
          success = handler.handleFault(_soapContext);
          _source = _soapContext.getMessage().getSOAPPart().getContent();
        } catch (SOAPException e) {
          throw new WebServiceException(e);
        }
      } else {
        throw new WebServiceException(
            L.l("Unsupported Handler type: {0}", handler.getClass().getName()));
      }

      _protocolException = null;
    } catch (ProtocolException e) {
      _protocolException = e;
      serializeProtocolException();
    } catch (RuntimeException e) {
      _runtimeException = e;
      serializeRuntimeException();
    }

    return success;
  }