The following JFR tests are failing in the incubator due to differences between JDK 8 and JDK 11 (eg. G1, Unified logging etc.)

* jdk/jfr/event/compiler/TestCodeSweeperConfig.java:
* jdk/jfr/event/compiler/TestCodeSweeperStats.java:
* jdk/jfr/event/compiler/TestCompilerCompile.java:
* jdk/jfr/event/compiler/TestCompilerPhase.java:
* jdk/jfr/event/gc/collection/TestGCCauseWithG1ConcurrentMark.java:
* jdk/jfr/event/gc/collection/TestGCCauseWithG1FullCollection.java:
* jdk/jfr/event/gc/collection/TestGCEventMixedWithG1ConcurrentMark.java:
* jdk/jfr/event/gc/collection/TestGCEventMixedWithG1FullCollection.java: * jdk/jfr/event/gc/configuration/TestGCHeapConfigurationEventWith32BitOops.sh:
* jdk/jfr/event/gc/detailed/TestG1AIHOPEvent.java:
* jdk/jfr/event/gc/detailed/TestG1IHOPEvent.java:
* jdk/jfr/event/gc/heapsummary/TestHeapSummaryCommittedSize.java:
* jdk/jfr/event/gc/objectcount/TestObjectCountAfterGCEventWithG1FullCollection.java:
* jdk/jfr/event/runtime/TestJavaMonitorInflateEvent.java:
* jdk/jfr/event/runtime/TestModuleEvents.java: Tests the JFR events related to modules
* jdk/jfr/event/runtime/TestThrowableInstrumentation.java: Verify instrumented Throwable bytecode by compiling it with C1.
* jdk/jfr/jcmd/TestJcmdChangeLogLevel.java: Test changing log level
* jdk/jfr/jvm/TestJfrJavaBase.java: verify that jfr can not be used when JVM is executed only with java.base
* jdk/jfr/jvm/TestLogOutput.java: Sanity test jfr logging output

Attaching full JTReg output for the reference.