I am using: - JBoss AS 4.2.3.GA - JBoss Cache 3.2.0 in the configuration, I am setting the loader as: | <loaders passivation="false" shared="false"> | <loader class="org.jboss.cache.loader.JDBCCacheLoader" async="true" fetchPersistentState="true" ignoreModifications="false" purgeOnStartup="false"> | | <properties> | cache.jdbc.datasource=java:/DefaultDS | cache.jdbc.table.name=jbosscache | cache.jdbc.table.create=true | cache.jdbc.table.drop=false | </properties> | </loader> | </loaders> | But this throws exception during startup due to not able to grab a connection using the datasource specified above, and when I inspect the JNDI tree, the DefaultDS does exist. So I traced into it, it seems that, when retrieving the datasource using the JNDI name, it can not find the the factory class org.jboss.naming.NonSerializableFactory class, which included in the jboss-common-core.jar file and deployed with my EAR file, and therefore, returns a null. The original ClassNotFound exception is ignored in the javax.naming.spi.NamingManager class when it tries to instantiate the factory class. I don't understand why this class is not found, as it is already included in the EAR/lib folder. The class that tries to lookup the JNDI datasource is org.jboss.cache.loader.ManagedConnectionFactory, which is in the jbosscache-core.jar file, and is in the same EAR/lib folder. So it should be able to see the NonSerializableFactory class just fine. I wonder if I am the only one having this problem using the JDBCCacheLoader with JNDI name. Any help is appreciated. Thanks, View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4257486#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...