mod_proxy ttl does not work with JBoss Enterprise Web Server 1.0.1 on RHEL5

Issue

• 1.3.9 apr is available in httpd22 package from JBoss Enterprise Web Server on Red Hat Enterprise Linux 4 (RHEL4) but on RHEL5 only 1.2.7 is the most recent apr.
• apr-utils-1.2.7 doesn't handle the time-to-live of resources. In 1.3.9, the apr_reslist_acquire function in misc/apr_reslist.c has code that checks the ttl of the resources and destroys the ones which have expired, while 1.2.7 is completely lacking this functionality. Because of this, apache mod_proxy's ttl parameter doesn't work as expected.