Has anyone been able to get ehcache working in a Seam application? I've enabled ehcache in my persistence unit:

<property name="hibernate.cache.use_second_level_cache" value="true"/>
 <property name="hibernate.cache.provider_class" value="org.hibernate.cache.EhCacheProvider"/>

and enabled caching for one of my entities:

@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class Organization extends PersistentObject {
...
}

I created a basic ehcache.xml file as follows:

<ehcache>

 <diskStore path="java.io.tmpdir"/>

 <defaultCache
 maxElementsInMemory="10000"
 eternal="false"
 timeToIdleSeconds="120"
 timeToLiveSeconds="120"
 overflowToDisk="true"
 diskPersistent="false"
 diskExpiryThreadIntervalSeconds="120"
 memoryStoreEvictionPolicy="LRU"
 />

</ehcache>

I put ehcache.xml into a jar file called ehcache.jar in server/default/lib so ehcache is able to find it. Where is this file really supposed to go? Does it really have to live there because that's where ehcache-1.2.3.jar is?

After loading an entity in my Seam application I update it in underlying database using an external application. I would expect the entity to remain unchanged when viewing in it my Seam application because the object should be cached, but it's obviously being reloaded from the database.

Any ideas?