HADOOP-11761. Fix findbugs warnings in org.apache.hadoop.security.authentication. Contributed by Li Lu.

hadoop-common-project/hadoop-auth/dev-support/findbugsExcludeFile.xml

@@ -34,5 +34,15 @@
     <Method name="getCurrentSecret" />
     <Bug pattern="EI_EXPOSE_REP" />
   </Match>
+  <Match>
+    <Class name="org.apache.hadoop.security.authentication.util.FileSignerSecretProvider" />
+    <Method name="getAllSecrets" />
+    <Bug pattern="EI_EXPOSE_REP" />
+  </Match>
+  <Match>
+    <Class name="org.apache.hadoop.security.authentication.util.FileSignerSecretProvider" />
+    <Method name="getCurrentSecret" />
+    <Bug pattern="EI_EXPOSE_REP" />
+  </Match>
 
 </FindBugsFilter>

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

@@ -707,6 +707,9 @@ Release 2.7.0 - UNRELEASED
     HADOOP-11639. Clean up Windows native code compilation warnings related to
     Windows Secure Container Executor. (Remus Rusanu via cnauroth)
 
+    HADOOP-11761. Fix findbugs warnings in org.apache.hadoop.security
+    .authentication. (Li Lu via wheat9)
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES