hi all, i have template using facelets, i have left menu and body pages, both of them has session beans, in the left menu bean i have generated richfaces HtmlPanelBarItem component, for leftmenu, in the body page i have richfaces tree componet generated from it's bean. all works fine i see PanelBar components in the left menu page and tree component on the body page, but then i tried to expand tree i got an exception, that in the left menu bean entitymanager is null :(, here is my example: 1.faces-config.xml | <managed-bean> | <managed-bean-name>library</managed-bean-name> <managed-bean-class>com.liliko.billing.businesslayer.beans.common.Library</managed-bean-class> | <managed-bean-scope>request</managed-bean-scope> | </managed-bean> | | <managed-bean> | <managed-bean-name>menu</managed-bean-name> <managed-bean-class>com.liliko.billing.businesslayer.beans.common.MenuBean</managed-bean-class> | <managed-bean-scope>session</managed-bean-scope> | </managed-bean> | 2. MenuBean.java | @Name("menu") | @Scope(ScopeType.SESSION) | public class MenuBean { | | @In(value="#{entityManager}") | private EntityManager entityManager; | ............................................ | 3. Library.java (body) | @Name("library") | @Scope(ScopeType.PAGE) | public class Library implements TreeNode { | | @In(value="#{entityManager}") | private EntityManager entityManager; | .................................. | exception occured when i tried to expand tree :(, why is the entitymanager null on this time ? error trace: | Caused by: org.jboss.seam.RequiredException: In attribute requires non-null value: menu.#{entityManager} | at org.jboss.seam.Component.getValueToInject(Component.java:1923) | at org.jboss.seam.Component.injectAttributes(Component.java:1372) | at org.jboss.seam.Component.inject(Component.java:1203) | _________________ Regards, Paata View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4059507#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...