More than one version of jetty jars found in Ambari rpm

Ambari Server running with administrator privileges.
Organizing resource files at /var/lib/ambari-server/resources...
WARNING: Multiple versions of jetty-util.jar found in java class path (/usr/lib/ambari-server/jetty-util-6.1.26.jar and /usr/lib/ambari-server/jetty-util-8.1.19.v20160209.jar).
 Make sure that you include only one jetty-util.jar in the java class path '/etc/ambari-server/conf:/usr/lib/ambari-server/*:/usr/share/java/mysql-connector-java.jar'.
Ambari database consistency check started...

[root@perf-a-1 ~]# rpm -ql ambari-server-2.5.0.0-914.x86_64 | grep jetty
/usr/lib/ambari-server/jetty-6.1.26.jar
/usr/lib/ambari-server/jetty-util-6.1.26.jar
/usr/lib/ambari-server/jetty-util-8.1.19.v20160209.jar