? core/.nbintdb
Index: core/windows/src/org/netbeans/core/windows/frames/DefaultContainerImpl.java
===================================================================
RCS file: /cvs/core/windows/src/org/netbeans/core/windows/frames/DefaultContainerImpl.java,v
retrieving revision 1.2
diff -u -r1.2 DefaultContainerImpl.java
--- core/windows/src/org/netbeans/core/windows/frames/DefaultContainerImpl.java	6 May 2003 15:27:17 -0000	1.2
+++ core/windows/src/org/netbeans/core/windows/frames/DefaultContainerImpl.java	13 May 2003 15:34:59 -0000
@@ -1515,7 +1515,9 @@
     private static javax.swing.ActionMap createContainerActionMap(
     DefaultContainerImpl container, TopComponent selected) {
         javax.swing.ActionMap am = new javax.swing.ActionMap();
-        am.put(clone.getActionMapKey(), new PerformerAction(container, TYPE_CLONE_ACTION, selected));
+        if(selected instanceof TopComponent.Cloneable) {
+            am.put(clone.getActionMapKey(), new PerformerAction(container, TYPE_CLONE_ACTION, selected));
+        }
         am.put(undock.getActionMapKey(), new PerformerAction(container, TYPE_UNDOCK_ACTION, selected));
         am.put(nextTab.getActionMapKey(), new PerformerAction(container, TYPE_NEXT_ACTION, selected));
         am.put(prevTab.getActionMapKey(), new PerformerAction(container, TYPE_PREVIOUS_ACTION, selected));
Index: core/windows/src/org/netbeans/core/windows/util/WindowUtils.java
===================================================================
RCS file: /cvs/core/windows/src/org/netbeans/core/windows/util/WindowUtils.java,v
retrieving revision 1.2
diff -u -r1.2 WindowUtils.java
--- core/windows/src/org/netbeans/core/windows/util/WindowUtils.java	6 May 2003 15:27:43 -0000	1.2
+++ core/windows/src/org/netbeans/core/windows/util/WindowUtils.java	13 May 2003 15:34:59 -0000
@@ -240,12 +240,13 @@
         }
         
         if(clone) {
-            // clone the view and dock into new single mode
-            TopComponent newComp =
-                (TopComponent)((TopComponent.Cloneable)tc).cloneComponent();
-            newComp.setIcon(tc.getIcon());
-            singleMode.dockInto(newComp);
-            newComp.open();
+            if(tc instanceof TopComponent.Cloneable) {
+                // Clone the view and dock into new single mode.
+                TopComponent newComp = ((TopComponent.Cloneable)tc).cloneComponent();
+                newComp.setIcon(tc.getIcon());
+                singleMode.dockInto(newComp);
+                newComp.open();
+            }
         } else {
             // undock to the single mode
             singleMode.dockInto(tc);