@artyom From my observation and experimentation, it does work “when @Type is applied to a field/getter in a @MappedSuperclass“. The point is that, as the comment states, it should be defined on

@MappedSuperclass
public{{ }}static{{ }}class{{ MultiTenantDocument}}

but not on

@MappedSuperclass
public{{ }}static{{ }}class{{ TaskServiceDocument}}

So have you considered other hypothesis?