src/share/classes/javax/imageio/metadata/IIOMetadataNode.java

@@ -303,10 +303,13 @@
     }
 
     /**
      * Check that the node is either <code>null</code> or an
      * <code>IIOMetadataNode</code>.
+     *
+     * @exception DOMException thrown if the node is not <code>null</code> or
+     * not an instance of <code>IIOMetadtaNode</code>
      */
     private void checkNode(Node node) throws DOMException {
         if (node == null) {
             return;
         }