Galder, I'm trying to identify the right fix for addressing AS7-4007. I started a clustered second level cache test that currently fails since Infinispan isn't on the test application classpath. The exception call stack that I'm getting is shown here http://pastie.org/3503803. I would like to discuss how we can address AS7-4007 (either on email or IRC). Initially, I worked around this by ensuring that the infinispan module is available in the test application classpath (https://github.com/jbossas/jboss-as/commit/31f3547960775dac88275447253fda...). The hack was to export the Infinispan module when the Hibernate module is brought into an application. This covered both JPA and Hibernate native applications, however it exports into every other module that references the Hibernate module (increasing the time that it takes to link the Hibernate module into other modules). There are other problems with requiring Infinipan to be in the application classpath (see https://community.jboss.org/wiki/ModularSerialization). I would like to better understand the alternatives (both short term and long term) to address AS7-4007 and issues like it. Perhaps by using MarshallingConfiguration.setClassResolver() to pass a ModuleClassResolver to be used with Infinispan marshalling/unmarshalling. Is that currently configurable with Infinispan? Paul Ferraro, David Lloyd and myself chatted on irc briefly about this a few days ago (see http://pastie.org/3528553). https://github.com/dmlloyd/jboss-marshalling/blob/master/api/src/main/jav... contains the source for the ModularClassResolver class that David referred to (as well as the ModularSerialization article linked above). Scott