BHS server ID for openstack4J

Hi, i'm trying to use openstack4J to upload files from a JAVA web app and by default i'm uploading the fles to the UK server. I'm in South America so I would need to change the server I'm using to Canada (BHS) to get a better latency.
The problem is that when is use:
` os.useRegion("bhs");`
I get the following error: `Endpoint for 'nova' service could not be found for region: 'bhs'`
Therefore I think that bhs is not the ID of the server and that's why openstack4J cannot find the server. Could you please help me?

Regards!