@Deprecated
  public RequestTemplate body(Request.Body body) {
    this.body = body;

    /* body template must be cleared to prevent double processing */
    this.bodyTemplate = null;

    header(CONTENT_LENGTH, Collections.emptyList());
    if (body.length() > 0) {
      header(CONTENT_LENGTH, String.valueOf(body.length()));
    }

    return this;
  }
Set the Body for this request.

@param body to send.
@return a RequestTemplate for chaining.
@deprecated use {@link #body(byte[], Charset)} instead.
core/src/main/java/feign/RequestTemplate.java