If you’re using ehcache’s disk persistence feature, which allows the cache to survive across JVM restarts, be sure to shut down ehcache properly.

To do so when using ehcache within a webapp, simply add its ShutdownListener as a listener in web.xml.


Alternatively, or when not using ehcache inside a webapp, instruct ehcache to register its own shutdown hook by setting a system property.


If you forget one of the above, your persisted cache may not be up-to-date, or worse, not persisted at all.