diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java
index e41c2901537..d4595e42ac1 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java
@@ -1642,10 +1642,12 @@ public abstract class HFileReaderImpl implements HFile.Reader, Configurable {
   /**
    * Create a Scanner on this file. No seeks or reads are done on creation. Call
    * {@link HFileScanner#seekTo(Cell)} to position an start the read. There is nothing to clean up
-   * in a Scanner. Letting go of your references to the scanner is sufficient. Store configuration.
-   * True if we should cache blocks read in by this scanner. Use positional read rather than
-   * seek+read if true (pread is better for random reads, seek+read is better scanning). is scanner
-   * being used for a compaction?
+   * in a Scanner. Letting go of your references to the scanner is sufficient.
+   * @param conf         Store configuration.
+   * @param cacheBlocks  True if we should cache blocks read in by this scanner.
+   * @param pread        Use positional read rather than seek+read if true (pread is better for
+   *                     random reads, seek+read is better scanning).
+   * @param isCompaction is scanner being used for a compaction?
    * @return Scanner on this file.
    */
   @Override
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java
index 8f163cf5cc2..f45bbb43240 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobFileName.java
@@ -51,8 +51,11 @@ public final class MobFileName {
   public static final String REGION_SEP = "_";
 
   /**
-   * The start key. The string of the latest timestamp of cells in this file, the format is
-   * yyyymmdd. The uuid
+   * Creates an instance of MobFileName
+   * @param startKey   The start key.
+   * @param date       The string of the latest timestamp of cells in this file, the format is
+   *                   yyyymmdd.
+   * @param uuid       The uuid
    * @param regionName name of a region, where this file was created during flush or compaction.
    */
   private MobFileName(byte[] startKey, String date, String uuid, String regionName) {
@@ -64,8 +67,11 @@ public final class MobFileName {
   }
 
   /**
-   * The md5 hex string of the start key. The string of the latest timestamp of cells in this file,
-   * the format is yyyymmdd. The uuid
+   * Creates an instance of MobFileName
+   * @param startKey   The md5 hex string of the start key.
+   * @param date       The string of the latest timestamp of cells in this file, the format is
+   *                   yyyymmdd.
+   * @param uuid       The uuid
    * @param regionName name of a region, where this file was created during flush or compaction.
    */
   private MobFileName(String startKey, String date, String uuid, String regionName) {
@@ -77,8 +83,10 @@ public final class MobFileName {
   }
 
   /**
-   * Creates an instance of MobFileName The md5 hex string of the start key. The string of the
-   * latest timestamp of cells in this file, the format is yyyymmdd.
+   * Creates an instance of MobFileName
+   * @param startKey   The md5 hex string of the start key.
+   * @param date       The string of the latest timestamp of cells in this file, the format is
+   *                   yyyymmdd.
    * @param uuid       The uuid.
    * @param regionName name of a region, where this file was created during flush or compaction.
    * @return An instance of a MobFileName.
@@ -88,8 +96,10 @@ public final class MobFileName {
   }
 
   /**
-   * Creates an instance of MobFileName The md5 hex string of the start key. The string of the
-   * latest timestamp of cells in this file, the format is yyyymmdd.
+   * Creates an instance of MobFileName
+   * @param startKey   The md5 hex string of the start key.
+   * @param date       The string of the latest timestamp of cells in this file, the format is
+   *                   yyyymmdd.
    * @param uuid       The uuid.
    * @param regionName name of a region, where this file was created during flush or compaction.
    * @return An instance of a MobFileName.