private void handleError(HttpServerResponse rep, Throwable e) {
            log.error(e);
            if (!rep.ended()) {
                rep.setStatusCode(500);
                rep.end();
            }
        }
<p>
Vert.x edition of Echo servlet, with view to being more amenable
to performance testing.
</p>
<p>
Can be run directly with: <tt>vertx run EchoServerVertx.java</tt>
</p>
<p>
To set port, use the property -Dio.apiman.test.common.echo.port=1234
</p>

@author Marc Savy {@literal <marc@rhymewithgravy.com>}
test/common/src/main/java/io/apiman/test/common/echo/EchoServerVertx.java