fix NPE in JPAEditorUtil.checkJPAFacetVersion

Change-Id: I1d2ff13c2bf765a8cd2679c85025d7071a9310e6
diff --git a/jpa_diagram_editor/plugins/org.eclipse.jpt.jpadiagrameditor.ui/src/org/eclipse/jpt/jpadiagrameditor/ui/internal/util/JPAEditorUtil.java b/jpa_diagram_editor/plugins/org.eclipse.jpt.jpadiagrameditor.ui/src/org/eclipse/jpt/jpadiagrameditor/ui/internal/util/JPAEditorUtil.java
index 93c6f3f..e9f8543 100644
--- a/jpa_diagram_editor/plugins/org.eclipse.jpt.jpadiagrameditor.ui/src/org/eclipse/jpt/jpadiagrameditor/ui/internal/util/JPAEditorUtil.java
+++ b/jpa_diagram_editor/plugins/org.eclipse.jpt.jpadiagrameditor.ui/src/org/eclipse/jpt/jpadiagrameditor/ui/internal/util/JPAEditorUtil.java
@@ -1318,6 +1318,9 @@
     }
     
 	static public boolean checkJPAFacetVersion(JpaProject jpaProject, String version) {
+		if(jpaProject == null && version == JPAEditorUtil.JPA_PROJECT_FACET_10){
+			return true;
+		}
 		return checkJPAFacetVersion(jpaProject.getProject(), version);
 	}