javac against the Boot 4.1.2 test classpath, sources from src/broken/

OldDataJpaTest.java:3: error: package org.springframework.boot.test.autoconfigure.orm.jpa does not exist
OldDataJpaTest.java:4: error: package org.springframework.boot.test.autoconfigure.orm.jpa does not exist
OldDataJpaTest.java:7: error: cannot find symbol
    symbol: class DataJpaTest
OldDataJpaTest.java:9: error: cannot find symbol
    symbol:   class TestEntityManager
    location: class lab.slices.OldDataJpaTest
OldRestClientTest.java:3: error: package org.springframework.boot.test.autoconfigure.web.client does not exist
OldRestClientTest.java:6: error: cannot find symbol
    symbol: class RestClientTest
OldWebMvcTest.java:3: error: package org.springframework.boot.test.autoconfigure.web.servlet does not exist
OldWebMvcTest.java:4: error: package org.springframework.boot.test.mock.mockito does not exist
OldWebMvcTest.java:7: error: cannot find symbol
    symbol: class WebMvcTest
OldWebMvcTest.java:9: error: cannot find symbol
    symbol:   class MockBean
    location: class lab.slices.OldWebMvcTest

10 errors
