The new test java/foreign/sharedclosejvmti/TestSharedCloseJvmti.java fails when running without CDS:
make run-test TEST=test/jdk/java/foreign/sharedclosejvmti/TestSharedCloseJvmti.java JTREG="VM_OPTIONS=-Xshare:off"

STDERR:
[14:00:40.711] STARTED TestSharedCloseJvmti::eventDuringScopedAccess 'eventDuringScopedAccess()'
[fork] Exception in thread "main" java.lang.NoClassDefFoundError: TestSharedCloseJvmti$EventDuringScopedAccessRunner
 stdout: [FATAL ERROR in native method: Wrong object class or methodID passed to JNI call

jni_env->FindClass(TARGET_CLASS_NAME) returns nullptr because of NoClassDefFoundError while trying to find "TestSharedCloseJvmti$EventDuringScopedAccessRunner". That's why MAIN_CLS and TARGET_ID don't get initialized in `start`.