Set port to default when URI uses amqp (plain)

Author: acogoluegnes

src/main/java/com/rabbitmq/client/ConnectionFactory.java

@@ -351,7 +351,7 @@ public ConnectionFactory setVirtualHost(String virtualHost) {
   public ConnectionFactory setUri(URI uri)
       throws URISyntaxException, NoSuchAlgorithmException, KeyManagementException {
     if ("amqp".equals(uri.getScheme().toLowerCase())) {
-      // nothing special to do
+      setPort(DEFAULT_AMQP_PORT);
     } else if ("amqps".equals(uri.getScheme().toLowerCase())) {
       setPort(DEFAULT_AMQP_OVER_SSL_PORT);
       // SSL context factory not set yet, we use the default one
@@ -1886,6 +1886,7 @@ public ConnectionFactory setTrafficListener(TrafficListener trafficListener) {
    *
    * @return the connection factory
    * @see #netty()
+   * @since 5.27.0
    */
   public ConnectionFactory useNetty() {
     this.netty = true;