HADOOP-9431 TestSecurityUtil#testLocalHostNameForNullOrWild on systems where hostname contains capital letters (Chris Nauroth via sanjay)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1460181 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -355,6 +355,9 @@ Trunk (Unreleased)
     HADOOP-9405. TestGridmixSummary#testExecutionSummarizer is broken. (Andrew
     Wang via atm)
 
+    HADOOP-9431 TestSecurityUtil#testLocalHostNameForNullOrWild on systems where hostname
+    contains capital letters  (Chris Nauroth via sanjay)
+
   OPTIMIZATIONS
 
     HADOOP-7761. Improve the performance of raw comparisons. (todd)

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestSecurityUtil.java

@@ -24,6 +24,7 @@ import java.io.IOException;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.URI;
+import java.util.Locale;
 
 import javax.security.auth.kerberos.KerberosPrincipal;
 
@@ -112,7 +113,7 @@ public class TestSecurityUtil {
 
   @Test
   public void testLocalHostNameForNullOrWild() throws Exception {
-    String local = SecurityUtil.getLocalHostName();
+    String local = SecurityUtil.getLocalHostName().toLowerCase(Locale.US);
     assertEquals("hdfs/" + local + "@REALM",
                  SecurityUtil.getServerPrincipal("hdfs/_HOST@REALM", (String)null));
     assertEquals("hdfs/" + local + "@REALM",