Well first, it is simply not true that Hibernate "instantiates the classes referred by ... MULTI_TENANT_CONNECTION_PROVIDER and MULTI_TENANT_IDENTIFIER_RESOLVER". Hibernate first tries to treat these settings as objects of their intended types, (MultiTenantConnectionProvider for MULTI_TENANT_CONNECTION_PROVIDER and CurrentTenantIdentifierResolver for MULTI_TENANT_IDENTIFIER_RESOLVER.

So just pass your beans in directly, configured however you want.

Beyond that, you'll have to explain exactly what you want.