Hi, I am trying to deploy drools guvnor 5.4 war into jboss5.1.0.GA apps server, but i got the following error... ...... ........ caused by: java.lang.ClassNotFoundException: javax.validation.MessageInterpolato $Context at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseCl help will be appreciated... thanks, ----- with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/drools-guvnor-5-4-final-deployment-erro... Sent from the Drools: User forum mailing list archive at Nabble.com.