move CountedBitSet back to translog package

Author: dnhatn

core/src/main/java/org/elasticsearch/common/util/CountedBitSet.java renamed to core/src/main/java/org/elasticsearch/index/translog/CountedBitSet.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.common.util;
+package org.elasticsearch.index.translog;
 
 import org.apache.lucene.util.BitSet;
 import org.apache.lucene.util.FixedBitSet;
@@ -27,7 +27,7 @@
  * when all bits are set to reduce memory usage. This structure can work well for sequence numbers
  * from translog as these numbers are likely to form contiguous ranges (eg. filling all bits).
  */
-public final class CountedBitSet extends BitSet {
+final class CountedBitSet extends BitSet {
     private short onBits; // Number of bits are set.
     private FixedBitSet bitset;
 

core/src/main/java/org/elasticsearch/index/translog/MultiSnapshot.java

@@ -21,7 +21,6 @@
 
 import com.carrotsearch.hppc.LongObjectHashMap;
 import org.apache.lucene.util.BitSet;
-import org.elasticsearch.common.util.CountedBitSet;
 import org.elasticsearch.index.seqno.SequenceNumbers;
 
 import java.io.Closeable;

core/src/test/java/org/elasticsearch/common/util/CountedBitSetTests.java renamed to core/src/test/java/org/elasticsearch/index/translog/CountedBitSetTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.common.util;
+package org.elasticsearch.index.translog;
 
 import org.apache.lucene.util.FixedBitSet;
 import org.elasticsearch.test.ESTestCase;