YARN-4223. Fixed findbugs warnings in hadoop-yarn-server-nodemanager project. (varun saxena via rohithsharmaks)

(cherry picked from commit 092883b34a0fe62568566bbf9108882f47003f96)

hadoop-yarn-project/CHANGES.txt

@@ -950,6 +950,9 @@ Release 2.8.0 - UNRELEASED
     YARN-3528. Tests with 12345 as hard-coded port break jenkins.
     (Brahma Reddy Battula via ozawa)
 
+    YARN-4223. Fixed findbugs warnings in hadoop-yarn-server-nodemanager project
+    (varun saxena via rohithsharmaks)
+
 Release 2.7.2 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml

@@ -109,6 +109,11 @@
     <Method name="handle" />
     <Bug pattern="BC_UNCONFIRMED_CAST" />
   </Match>
+  <Match>
+    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainersLauncher" />
+    <Method name="handle" />
+    <Bug pattern="BC_UNCONFIRMED_CAST" />
+  </Match>
 
 
   <!-- Ignore intentional switch fallthroughs -->