Read docu: "The expiration time is indicated using the org.jboss.cache.Node.put() method, using a String key expiration and the absolute time as a java.lang.Long object, with a value indicated as milliseconds past midnight January 1st, 1970 UTC (the same relative time as provided by java.lang.System.currentTimeMillis() )." The key has to be absolute time, whereas you're giving it a relative time: child.put(ExpirationAlgorithmConfig.EXPIRATION_KEY, 100); And @mjdinsmore, it's not the same issue that you have in the other forum entry View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4245198#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...