David Martin [https://community.jboss.org/people/dmartfw1] created the discussion "SEAM application - Clustering works for SFSB annotated with @Clustered but does not work for Non-" To view the discussion, visit: https://community.jboss.org/message/725993#725993 -------------------------------------------------------------- Hello, Just curious if anyone can help me out with this issue: I've created a Seam Component that has a scope of Conversation and in it I am injecting a Seam component that has a scope of Session.  I get the following exception when the component is invoked (via an el expression binding): 08:07:36,819 WARN  [/osrs] Failed to replicate session sqOk+VEjdw4H3NXWuqrIzw__ org.jboss.seam.RequiredException: @In attribute requires non-null value: scoring ManagementAction.breadCrumbStackView         at org.jboss.seam.Component.getValueToInject(Component.java:2361)         at org.jboss.seam.Component.injectAttributes(Component.java:1739)         at org.jboss.seam.Component.inject(Component.java:1557)         at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterc eptor.java:61)         at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocation Context.java:68)         at org.jboss.seam.persistence.ManagedEntityInterceptor.aroundInvoke(Mana gedEntityInterceptor.java:48) The application is configured for clustering and at startup looks good: 08:05:44,670 INFO  [DefaultPartition] Number of cluster members: 1 08:05:44,671 INFO  [DefaultPartition] Other members: 0 If I convert the same component over to a SFSB and include the @Clustered annotation, everything work fine. This is all happening locally in my development environment.  I am using JBoss AS 5.1 and Seam 2.2.2.Final. Here is a snippet from the Seam Component that is failing: @Scope(ScopeType.CONVERSATION) @Name("scoringManagementAction") @Restrict("#{identity.loggedIn}") public class ScoringManagementAction implements Serializable, ScoringManager, Mutable {     private static final long serialVersionUID = -1266492462210968391L;     @Logger     private Log log; .... ....     @In(required = true, scope = ScopeType.SESSION)     @Out(required = true, scope = ScopeType.SESSION)     private BreadCrumbStackView breadCrumbStackView; .... ....     @Override     public boolean clearDirty() {         final boolean isDirtySet = this.scoringView.isDirty();         this.scoringView.setDirty(false);         return isDirtySet;     } Thanks for your help. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/725993#725993] Start a new discussion in Clustering Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]