commit 2b1cde1400a575fa10386c0fa5b56d8bf82f716f

Author: Owen O'Malley <omalley@apache.org>
Date:   Sun Mar 21 14:10:53 2010 -0700

    HADOOP-6653. Protect against NPE in setupSaslConnection when the real user
    is NULL.
    
    +++ b/YAHOO-CHANGES.txt
    +    HADOOP-6653. Protect against NPE in setupSaslConnection when real user is
    +    null. (omalley)
    +


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security-patches@1077355 13f79535-47bb-0310-9956-ffa450edef68

src/core/org/apache/hadoop/ipc/Client.java

@@ -366,7 +366,7 @@ public class Client {
             UserGroupInformation.isLoginKeytabBased() &&
             // relogin only in case it is the login user (e.g. JT)
             // or superuser (like oozie).
-            (currentUser.equals(loginUser) || realUser.equals(loginUser))) {
+            (currentUser.equals(loginUser) || loginUser.equals(realUser))) {
           //try setting up the connection again
           try {
             //try re-login