diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ExplicitColumnTracker.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ExplicitColumnTracker.java
index 040ada4beef..b779e223ad7 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ExplicitColumnTracker.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ExplicitColumnTracker.java
@@ -76,8 +76,6 @@ public class ExplicitColumnTracker implements ColumnTracker {
    * @param maxVersions maximum versions to return per column
    * @param oldestUnexpiredTS the oldest timestamp we are interested in,
    *  based on TTL 
-   * @param lookAhead number of KeyValues to look ahead via next before
-   *  (re)seeking
    */
   public ExplicitColumnTracker(NavigableSet<byte[]> columns, int minVersions,
       int maxVersions, long oldestUnexpiredTS) {
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.java
index a79b35f65ff..032b4ce1c5c 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.java
@@ -233,8 +233,9 @@ public class ScanQueryMatcher {
    * @throws IOException 
    */
   public ScanQueryMatcher(Scan scan, ScanInfo scanInfo, NavigableSet<byte[]> columns,
-      long readPointToUse, long earliestPutTs, long oldestUnexpiredTS, long now, byte[] dropDeletesFromRow,
-      byte[] dropDeletesToRow, RegionCoprocessorHost regionCoprocessorHost) throws IOException {
+      long readPointToUse, long earliestPutTs, long oldestUnexpiredTS, long now,
+      byte[] dropDeletesFromRow, byte[] dropDeletesToRow,
+      RegionCoprocessorHost regionCoprocessorHost) throws IOException {
     this(scan, scanInfo, columns, ScanType.COMPACT_RETAIN_DELETES, readPointToUse, earliestPutTs,
         oldestUnexpiredTS, now, regionCoprocessorHost);
     Preconditions.checkArgument((dropDeletesFromRow != null) && (dropDeletesToRow != null));
@@ -579,8 +580,6 @@ public class ScanQueryMatcher {
 
   /**
    * @param nextIndexed the key of the next entry in the block index (if any)
-   * @param off
-   * @param len
    * @param kv The Cell we're using to calculate the seek key
    * @return result of the compare between the indexed key and the key portion of the passed cell
    */
@@ -594,8 +593,6 @@ public class ScanQueryMatcher {
 
   /**
    * @param nextIndexed the key of the next entry in the block index (if any)
-   * @param off
-   * @param len
    * @param kv The Cell we're using to calculate the seek key
    * @return result of the compare between the indexed key and the key portion of the passed cell
    */
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java
index 47e53604a18..4ba7235a411 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java
@@ -338,7 +338,7 @@ public class StoreScanner extends NonReversedNonLazyKeyValueScanner
           }
           scanner.seek(seekKey);
           Cell c = scanner.peek();
-          if (c != null ) {
+          if (c != null) {
             totalScannersSoughtBytes += CellUtil.estimatedSerializedSizeOf(c);
           }
         }
@@ -604,7 +604,8 @@ public class StoreScanner extends NonReversedNonLazyKeyValueScanner
    */
   private ScanQueryMatcher.MatchCode optimize(ScanQueryMatcher.MatchCode qcode, Cell cell) {
     Cell nextIndexedKey = getNextIndexedKey();
-    if (nextIndexedKey == null || nextIndexedKey == HConstants.NO_NEXT_INDEXED_KEY || store == null) {
+    if (nextIndexedKey == null || nextIndexedKey == HConstants.NO_NEXT_INDEXED_KEY ||
+        store == null) {
       return qcode;
     }
     switch(qcode) {