src/java.sql/share/classes/java/sql/ShardingKeyBuilder.java

@@ -40,10 +40,12 @@
  *                           .subkey("abc", JDBCType.VARCHAR)
  *                           .subkey(94002, JDBCType.INTEGER)
  *                           .build();
  * }
  * </pre>
+ *
+ * @since 9
  */
 public interface ShardingKeyBuilder {
 
     /**
      * This method will be called to add a subkey into a Sharding Key object being