HBASE-22679 : Revamping CellUtil (#735)

* HBASE-22679 : Revamping CellUtil

* checkstyle fix

* incorporating review

* minor indentation

Author: virajjasani

hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java

@@ -687,8 +687,12 @@ private static <T extends Mutation> T toDelta(Function<Bytes, T> supplier, Consu
           if (qv.hasTags()) {
             tags = qv.getTags().toByteArray();
           }
-          consumer.accept(mutation, CellUtil.createCell(mutation.getRow(), family, qualifier, qv.getTimestamp(),
-                  KeyValue.Type.Put, value, tags));
+          consumer.accept(mutation, ExtendedCellBuilderFactory.create(CellBuilderType.DEEP_COPY)
+            .setRow(mutation.getRow()).setFamily(family)
+            .setQualifier(qualifier).setTimestamp(qv.getTimestamp())
+            .setType(KeyValue.Type.Put.getCode()).setValue(value)
+            .setTags(tags).setSequenceId(0)
+            .build());
         }
       }
     }

hbase-common/src/main/java/org/apache/hadoop/hbase/ByteBufferKeyValue.java

@@ -180,7 +180,7 @@ public int getValueLength() {
 
   @Override
   public byte[] getTagsArray() {
-    return CellUtil.cloneTags(this);
+    return PrivateCellUtil.cloneTags(this);
   }
 
   @Override