Can mod_proxy_balancer, mod_jk, and mod_cluster be used together?

Issue

• We are using httpd as a loadbalancer. We first used mod_proxy_balancer for another application server:

ProxyPreserveHost On
ProxyPass /app balancer://balancer stickysession=JSESSIONID|jsessionid nofailover=On
ProxyPassReverse /app balancer://balancer
<Proxy balancer://balancer>
    BalancerMember http://127.0.0.1:8080/app route=server1
    BalancerMember http://127.0.0.1:8180/app route=server2
</Proxy>

• Then we added mod_cluster module for our JBoss servers and saw errors like the following:

Module mod_proxy_balancer is loaded it must be removed in order for mod_proxy_cluster to function properly

• We know that when using mod_cluster, we must comment out the mod_proxy_balancer module of httpd.
• We want to know how can still keep the function of the previous mod_proxy_balancer configuration?
• How to use mod_proxy_balancer and mod_cluster together?
• Which is recommended mod_jk/mod_proxy/mod_cluster to configure JBoss EAP 5 and JBoss EAP 6 together with Apache httpd server?