--- old/src/java.sql.rowset/share/classes/javax/sql/rowset/RowSetWarning.java	2014-09-29 17:16:51.000000000 -0400
+++ new/src/java.sql.rowset/share/classes/javax/sql/rowset/RowSetWarning.java	2014-09-29 17:16:51.000000000 -0400
@@ -127,8 +127,16 @@
      *         <code>null</code> is returned (default value)
      * @see #setNextWarning
      */
-    public RowSetWarning getNextWarning() {
-        return rwarning;
+    public RowSetWarning getNextWarning() {        
+        try {
+            return ((RowSetWarning)getNextException());
+        } catch (ClassCastException ex) {
+            // The chained value isn't a RowSetWarning.
+            // This is a programming error by whoever added it to
+            // the RowSetWarning chain.  We throw a Java "Error".
+            throw new Error("RowSetWarning chain holds value that is not a RowSetWarning");
+        }
+        
     }
 
     /**
@@ -141,7 +149,7 @@
      * @see #getNextWarning
      */
     public void setNextWarning(RowSetWarning warning) {
-        rwarning = warning;
+        setNextException(warning);
     }
 
     static final long serialVersionUID = 6678332766434564774L;