test/hotspot/jtreg/compiler/jvmci/events/JvmciShutdownEventTest.java fails after JDK-8198249.

java.lang.InternalError: should not reach here
at java.base/java.lang.ClassLoader.getSystemClassLoader(ClassLoader.java:1934)
at jdk.internal.vm.ci/jdk.vm.ci.services.JVMCIServiceLocator.getProviders(JVMCIServiceLocator.java:87)
at jdk.internal.vm.ci/jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.getVmEventListeners(HotSpotJVMCIRuntime.java:255)
at jdk.internal.vm.ci/jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.shutdown(HotSpotJVMCIRuntime.java:463)