Fix typo

Closes gh-887

Author: stoeckmann

spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcOperations.java

@@ -223,7 +223,7 @@ public interface JdbcOperations {
 	 * {@code queryForRowSet} method with {@code null} as argument array.
 	 * <p>The results will be mapped to an SqlRowSet which holds the data in a
 	 * disconnected fashion. This wrapper will translate any SQLExceptions thrown.
-	 * <p>Note that that, for the default implementation, JDBC RowSet support needs to
+	 * <p>Note that, for the default implementation, JDBC RowSet support needs to
 	 * be available at runtime: by default, Sun's {@code com.sun.rowset.CachedRowSetImpl}
 	 * class is used, which is part of JDK 1.5+ and also available separately as part of
 	 * Sun's JDBC RowSet Implementations download (rowset.jar).