Currently, the build puts the following jars into common/lib:
jboss-ha-server-api.jar
jboss-ha-server-cache-jbc.jar
jboss-ha-server-cache-spi.jar
jboss-ha-server-core.jar

This will likely cause classloader issues, especially for classes that extend/implement jbosscache or jgroups classes (e.g. CacheManager, ChannelFactory), since these jars reside in server/all/lib