REPORT-40027 NPE

designer-form/src/main/java/com/fr/design/mainframe/JForm.java

@@ -310,7 +310,10 @@ public class JForm extends JTemplate<Form, FormUndoState> implements BaseJForm<F
         addJTemplateActionListener(new JTemplateActionListenerAdapter() {
             @Override
             public void templateClosed(JTemplate<?, ?> jt) {
-                String key = jt.getEditingFILE().getPath() + template.getTemplateID();
+                if (jt == null) {
+                    return;
+                }
+                String key = jt.getEditingFILE().getPath() + jt.getTarget().getTemplateID();
                 FormHierarchyTreePane.getInstance().removeTreePath(key);
             }
         });