diff --git a/j2ee.api.ejbmodule/src/org/netbeans/modules/j2ee/ejbjar/project/ui/EjbContainerChildren.java b/j2ee.api.ejbmodule/src/org/netbeans/modules/j2ee/ejbjar/project/ui/EjbContainerChildren.java
--- a/j2ee.api.ejbmodule/src/org/netbeans/modules/j2ee/ejbjar/project/ui/EjbContainerChildren.java
+++ b/j2ee.api.ejbmodule/src/org/netbeans/modules/j2ee/ejbjar/project/ui/EjbContainerChildren.java
@@ -177,7 +177,10 @@
     private void createNodesForKeys(List<Key> keys){
         nodesHash.clear();
         for(Key key: keys){
-            nodesHash.put(key, createNodes(key)[0]);
+            Node[] ns = createNodes(key);
+            if (ns != null && ns.length > 0) {
+                nodesHash.put(key, ns[0]);
+            }
         }
     }
 
@@ -209,7 +212,7 @@
                 ((AbstractNode)node).setIconBaseWithExtension("org/netbeans/modules/j2ee/ejbjar/project/ui/wait.gif"); //NOI18N
             }
         }
-        return node == null ? new Node[1] : new Node[] { node };
+        return node == null ? new Node[0] : new Node[] { node };
     }
 
     public void propertyChange(PropertyChangeEvent propertyChangeEvent) {