$ mvn test   # after/ pom and main code + the Boot 3 MockFieldTest unchanged (compiles) and CsrfProbeTest (one import fixed)
CSRFPROBE status=403
[ERROR]   MockFieldTest.mockFieldIsInitialised:20 @Mock field was never initialised ==> expected: not <null>
[ERROR] Tests run: 2, Failures: 1, Errors: 0, Skipped: 0
[INFO] BUILD FAILURE