Message Title

This is a follow-up of

HHH-13409 Closed that broke a test for us on upgrade from 5.4.3 to 5.4.4.

Caused by: java.util.ServiceConfigurationError: org.hibernate.boot.registry.selector.StrategyRegistrationProvider: org.hibernate.cache.jcache.internal.StrategyRegistrationProviderImpl not a subtype
 	at java.base/java.util.ServiceLoader.fail(ServiceLoader.java:588)
 	at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNextService(ServiceLoader.java:1236)
 	at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNext(ServiceLoader.java:1264)
 	at java.base/java.util.ServiceLoader$2.hasNext(ServiceLoader.java:1299)
 	at java.base/java.util.ServiceLoader$ProviderSpliterator.tryAdvance(ServiceLoader.java:1483)
 	at java.base/java.util.Spliterator.forEachRemaining(Spliterator.java:326)
 	at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658)
 	at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:274)
 	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1654)
 	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
 	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
 	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
 	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
 	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
 	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
 	at org.hibernate.boot.registry.classloading.internal.AggregatedServiceLoader$ClassPathAndModulePathAggregatedServiceLoader.loadAll(AggregatedServiceLoader.java:203)
 	at org.hibernate.boot.registry.classloading.internal.AggregatedServiceLoader$ClassPathAndModulePathAggregatedServiceLoader.getAll(AggregatedServiceLoader.java:183)
 	at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.loadJavaServices(ClassLoaderServiceImpl.java:251)
 	at org.hibernate.boot.registry.selector.internal.StrategySelectorBuilder.buildSelector(StrategySelectorBuilder.java:173)
 	at org.hibernate.boot.registry.BootstrapServiceRegistryBuilder.build(BootstrapServiceRegistryBuilder.java:232)
 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.buildBootstrapServiceRegistry(EntityManagerFactoryBuilderImpl.java:454)
 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:199)
 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:167)

The reason why the sub-type check fails is because those two classes are loaded by different classloaders. We've had a round of investigation as how to workaround the problem in our test and this comment provides valuable insight.