Class-based DTOs are not yet supported.

[anarchical]

springboot version: v3.3.7-SNAPSHOT

Page<SchoolInterface> pageResult = schoolRepository.findBy(specification, q -> q.as(SchoolInterface.class));

When projection target is Interface, it works well.

But error occurred when I change the projection target to DTOs(normal class or record type)

java.lang.UnsupportedOperationException: Class-based DTOs are not yet supported.

I hope to know why must use interface.

[christophstrobl]

likely to be closed by #3654

[mp911de]

Duplicate of #2327