diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index 88cca41599..5b5724b577 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -584,6 +584,9 @@ Release 2.7.2 - UNRELEASED
     MAPREDUCE-6439. AM may fail instead of retrying if RM shuts down during the
     allocate call. (Anubhav Dhoot via kasha)
 
+    MAPREDUCE-6442. Stack trace is missing when error occurs in client protocol
+    provider's constructor (Chang Li via ozawa)
+
 Release 2.7.1 - 2015-07-06 
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Cluster.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Cluster.java
index 34353acb87..fc228e63a3 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Cluster.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Cluster.java
@@ -111,7 +111,7 @@ private void initialize(InetSocketAddress jobTrackAddr, Configuration conf)
         } 
         catch (Exception e) {
           LOG.info("Failed to use " + provider.getClass().getName()
-              + " due to error: " + e.getMessage());
+              + " due to error: ", e);
         }
       }
     }