Address javadoc and checkstyle

Author: Danny Becker

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java

@@ -1564,13 +1564,13 @@ public long getMostRecentCheckpointTxId() {
   }
 
   /**
-   * Given a NameNodeFile type, retrieve the latest txid for that file or
-   * {@link HdfsServerConstants::INVALID_TXID} if the file does not exist
+   * Given a NameNodeFile type, retrieve the latest txid for that file or {@link
+   * HdfsServerConstants::INVALID_TXID} if the file does not exist.
    *
    * @param nnf The NameNodeFile type to retrieve the latest txid from.
-   * @return the latest txid for the NameNodeFile type, or
-   * {@link HdfsServerConstants::INVALID_TXID} if there is no FSImage file of
-   * the type requested
+   * @return the latest txid for the NameNodeFile type, or {@link
+   * HdfsServerConstants::INVALID_TXID} if there is no FSImage file of the type
+   * requested.
    * @throws IOException
    */
   public long getMostRecentNameNodeFileTxId(NameNodeFile nnf)

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/NamenodeProtocol.java

@@ -110,7 +110,7 @@ BlocksWithLocations getBlocks(DatanodeInfo datanode, long size, long
    * Get the transaction ID of the most recent checkpoint.
    */
   @Idempotent
-  public long getMostRecentCheckpointTxId() throws IOException;
+  long getMostRecentCheckpointTxId() throws IOException;
 
   /**
    * Get the transaction ID of the most recent checkpoint for the given NameNodeFile.