Hi, All. I'm using EJB3 Cluster in Jboss, when I learned the jboss Tutorial, I met some trouble. This is: When I deploy the jar to jboss, I always met the error: 12:11:21,937 ERROR [URLDeploymentScanner] Incomplete Deployment listing: --- MBeans waiting for other MBeans --- ObjectName: jboss.j2ee:jar=tutorial.jar,name=StatefulBean,service=EJB3 State: FAILED Reason: java.lang.RuntimeException: java.lang.NoSuchFieldError: eviction_polic y_provider --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM --- ObjectName: jboss.j2ee:jar=tutorial.jar,name=StatefulBean,service=EJB3 State: FAILED Reason: java.lang.RuntimeException: java.lang.NoSuchFieldError : eviction_polic y_provider the sources are below: //interface | public interface StatefulRemote | { | void increment(); | } //stateful sessionbean | @Stateful | @Clustered | @Remote( StatefulRemote.class) | public class StatefulBean implements java.io.Serializable, StatefulRemote | { | private int state = 0; | | public void increment() | { | System.out.println("counter: " + (++state)); | } | | public String toString() | { | return super.toString() + " state-(" + state + ")"; | } | } My environments are: JBoss 4.0.5.GA and java-cache.jar version is 1.4.0.SP1 It trouble me several days, Anyone could help me? ^_^~ Happy new year! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997097#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...