BulkDelete is not active by default and i'm trying to add to coprocessor region and restart, it didn't work. When i describe table i don't see bulk delete active

Here is my property value, i have appended BulkDelete property value to existing and restarted. 

<name>hbase.coprocessor.region.classes</name>
<value>org.apache.hadoop.hbase.security.token.TokenProvider,org.apache.hadoop.hbase.security.access.AccessController,org.apache.hadoop.hbase.coprocessor.example.BulkDeleteEndpoint</value>

Any help would be apreciated. 

Thanks,

Asif