Create a TenantActions interface that both the Client and Tenant interface can extend from. This allows common tenant actions to be accessible from the client directly, for example:

client.createApplication(app);

instead of

client.getCurrentTenant().createApplication(app);

which is unnecessarily verbose.

This interface should contain all behavior common to both a Client and Tenant instance. For example, the client is not a Resource so save() should not be available.