Camel HTTP no longer supporting chunked transfer encoding with Tomcat

When sending a chunked POST whilst running the servlet under Tomcat, camel now fails to read the input stream and sets the body to null.

chunked-http-failure-test

This is due to camel checking the stream for available bytes introduced in CAMEL-5806. For whatever reason the CoyoteInputStream is returning 0 available bytes when handling a chunked request.

    if (len < 0) {
        InputStream is = request.getInputStream();
        if (is.available() == 0) {
            // no data so return null
            return null;
        }
    }