Is it??? If it is not, does that mean I cannot use JBoss Caching OUTSIDE of an application server? Currently, here is the error that I get when I do execute it out of an app server - | Caused by: javax.naming.ConfigurationException [Root exception is java.rmi.MarshalException: error marshalling return; nested exception is: | java.io.NotSerializableException: org.jboss.cache.TreeCache] | at weblogic.jndi.internal.ExceptionTranslator.toNamingException(ExceptionTranslator.java:45) | at weblogic.jndi.internal.ExceptionTranslator.toNamingException(ExceptionTranslator.java:77) | at weblogic.jndi.internal.WLContextImpl.translateException(WLContextImpl.java:418) | at weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:374) | at weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:359) | at javax.naming.InitialContext.lookup(InitialContext.java:347) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3966828#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...