ZOOKEEPER-2606: SaslServerCallbackHandler#handleAuthorizeCallback() should log the exception (Ted Yu via fpj)

CHANGES.txt

@@ -398,7 +398,10 @@ BUGFIXES:
   (Eyal Leshmem via rgs)
 
   ZOOKEEPER-2467: NullPointerException when redo Command is passed negative value
- (Rakesh Kumar Singh via rakeshr)
+  (Rakesh Kumar Singh via rakeshr)
+
+  ZOOKEEPER-2606: SaslServerCallbackHandler#handleAuthorizeCallback() should log
+  the exception (Ted Yu via fpj) 
 
 IMPROVEMENTS:
   ZOOKEEPER-2024 Major throughput improvement with mixed workloads (Kfir Lev-Ari via shralex)

src/java/main/org/apache/zookeeper/server/auth/SaslServerCallbackHandler.java

@@ -134,7 +134,7 @@ public class SaslServerCallbackHandler implements CallbackHandler {
             LOG.info("Setting authorizedID: " + userNameBuilder);
             ac.setAuthorizedID(userNameBuilder.toString());
         } catch (IOException e) {
-            LOG.error("Failed to set name based on Kerberos authentication rules.");
+            LOG.error("Failed to set name based on Kerberos authentication rules.", e);
         }
     }