diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt b/hadoop-common-project/hadoop-common/CHANGES.txt
index bb7a10de341..25109cea5ae 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -385,6 +385,9 @@ Release 2.5.0 - UNRELEASED
 
     HADOOP-10496. Metrics system FileSink can leak file descriptor. (cnauroth)
 
+    HADOOP-10500. TestDoAsEffectiveUser fails on JDK7 due to failure to reset
+    proxy user configuration. (cnauroth)
+
 Release 2.4.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestDoAsEffectiveUser.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestDoAsEffectiveUser.java
index 830106dcee2..e546e4c93fa 100644
--- a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestDoAsEffectiveUser.java
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestDoAsEffectiveUser.java
@@ -74,8 +74,9 @@ public class TestDoAsEffectiveUser {
   }
 
   @Before
-  public void setMasterConf() {
+  public void setMasterConf() throws IOException {
     UserGroupInformation.setConfiguration(masterConf);
+    refreshConf(masterConf);
   }
 
   private void configureSuperUserIPAddresses(Configuration conf,
@@ -297,6 +298,8 @@ public class TestDoAsEffectiveUser {
         .setInstance(new TestImpl()).setBindAddress(ADDRESS).setPort(0)
         .setNumHandlers(2).setVerbose(false).build();
 
+    refreshConf(conf);
+
     try {
       server.start();
 
@@ -379,6 +382,8 @@ public class TestDoAsEffectiveUser {
         .setInstance(new TestImpl()).setBindAddress(ADDRESS).setPort(0)
         .setNumHandlers(2).setVerbose(false).build();
     
+    refreshConf(conf);
+
     try {
       server.start();