I am using JBoss 2.4.10(Tomcat 4.0.6) j2sdk 1.4, j2ee 1.3. When I deploy the application and try to access certain jsp pages i get java.lang.NoClassDefFoundError. But I find that the "NoDefFound" class is in the ear file in the right place. Where might be the possible problem?? Is there any internal class path for jboss that we r required to update when we deploy an application??