diff --git a/src/share/classes/java/sql/DriverManager.java b/src/share/classes/java/sql/DriverManager.java
index 797a920d2306af764ef3435cca739a62b979c269..bd16f92de7b22393039866d88f2524f428166058 100644
--- a/src/share/classes/java/sql/DriverManager.java
+++ b/src/share/classes/java/sql/DriverManager.java
@@ -326,6 +326,7 @@ public class DriverManager {
      * @param driver the new JDBC Driver that is to be registered with the
      *               {@code DriverManager}
      * @exception SQLException if a database access error occurs
+     * @exception NullPointerException if {@code driver} is null
      */
     public static synchronized void registerDriver(java.sql.Driver driver)
         throws SQLException {
@@ -345,6 +346,7 @@ public class DriverManager {
      * @param da     the {@code DriverAction} implementation to be used when
      *               {@code DriverManager#deregisterDriver} is called
      * @exception SQLException if a database access error occurs
+     * @exception NullPointerException if {@code driver} is null
      */
     public static synchronized void registerDriver(java.sql.Driver driver,
             DriverAction da)