HDFS-5938. Make BlockReaderFactory#BlockReaderPeer a static class to avoid a findbugs warning (cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1567767 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -422,6 +422,9 @@ Release 2.4.0 - UNRELEASED
     HDFS-5879. Some TestHftpFileSystem tests do not close streams.
     (Gera Shegalov via suresh)
 
+    HDFS-5938. Make BlockReaderFactory#BlockReaderPeer a static class to avoid
+    a findbugs warning. (cmccabe)
+
 Release 2.3.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/BlockReaderFactory.java

@@ -663,7 +663,7 @@ public class BlockReaderFactory implements ShortCircuitReplicaCreator {
     return null;
   }
 
-  private class BlockReaderPeer {
+  private static class BlockReaderPeer {
     final Peer peer;
     final boolean fromCache;