$ mvn -o -B test -Dtest=CacheApiNamespaceTest
(trimmed to the test's own RESULT lines and the surefire summary)

RESULT[cache-api-namespace]: javax.cache.Caching loads fine from this classpath (jar: file:/root/.m2/repository/javax/cache/cache-api/1.1.1/cache-api-1.1.1.jar)
RESULT[cache-api-no-jakarta-namespace]: Class.forName("jakarta.cache.Cache") -> ClassNotFoundException -- JSR-107 was never renamed to a jakarta.cache package, with or without Ehcache's own "jakarta" classifier on org.ehcache:ehcache.

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Test set: com.ankurm.hibernatedemo.cache.CacheApiNamespaceTest
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Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.115 s -- in com.ankurm.hibernatedemo.cache.CacheApiNamespaceTest