@Override
  public byte[] getACL() {
    final byte[] acl = this.delegateScan.getACL();
    return Bytes.copy(acl);
  }
Create Immutable instance of Scan from given Scan object
@param scan Copy all values from Scan
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ImmutableScan.java