acmetest | Unit test project for acme.sh project | TLS library

How do I make the methods in the UserService commit their transactions when the method returns, so the test code will throw an exception as-is?

Since @DataJpaTest is @Transactional itself. Code written in @Test method is executed within a transaction. You can change it using Propogation.NOT_SUPPORTED which

Execute non-transactionally, suspend the current transaction if one exists

As a general answer: If dumping the optimized autoloader solves your problem, and not optimizing it still shows it, you have a typo somewhere in your directories or file names.

Dumping the optimized autoloader will scan all files it finds in the directory mentioned for PSR-4 or PSR-0 autoloading, and write an array with all class names found, and their corresponding file names. If you made a typo in your path, dumping this array will connect the class name to the correct file path, regardless of any typos.

Note that some file systems (mostly Linux) are case sensitive, others not (Windows), and that cases are relevant for PSR-4 and PSR-0, which would result in the autoloading to work on case-insensitive file systems, but not on case-sensitive ones.

The problem with your question is that none of the information you gave contains an OBVIOUS hint that you were doing something wrong. However, you might have re-typed your code and NOT made the error, while your original code still has the typo in the file path. Double check that.