### Eclipse Workspace Patch 1.0
#P org.eclipse.jpt.ui
Index: src/org/eclipse/jpt/ui/internal/actions/OpenJpaResourceAction.java
===================================================================
RCS file: /cvsroot/webtools/org.eclipse.jpa/components/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/actions/OpenJpaResourceAction.java,v
retrieving revision 1.2
diff -u -r1.2 OpenJpaResourceAction.java
--- src/org/eclipse/jpt/ui/internal/actions/OpenJpaResourceAction.java	14 Apr 2008 19:44:26 -0000	1.2
+++ src/org/eclipse/jpt/ui/internal/actions/OpenJpaResourceAction.java	12 Jun 2008 15:24:47 -0000
@@ -17,6 +17,7 @@
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jpt.core.JpaStructureNode;
 import org.eclipse.jpt.core.context.JpaContextNode;
+import org.eclipse.jpt.core.context.JpaRootContextNode;
 import org.eclipse.jpt.ui.internal.JptUiMessages;
 import org.eclipse.jpt.ui.internal.selection.DefaultJpaSelection;
 import org.eclipse.jpt.ui.internal.selection.JpaSelectionManager;
@@ -39,6 +40,7 @@
 	}
 	
 	
+	@Override
 	public boolean updateSelection(IStructuredSelection s) {
 		selectedNode = null;
 		
@@ -50,6 +52,10 @@
 			return false;
 		}
 		
+		if (s.getFirstElement() instanceof JpaRootContextNode) {
+			return false;
+		}
+		
 		selectedNode = (JpaContextNode) s.getFirstElement();
 
 		return true;