Add OpenJ9PropsExt properties for serviceability_jvmti_j9

[JasonFengJ9]

vm.cds is set to false for serviceability/jvmti/CanGenerateAllClassHook/CanGenerateAllClassHook.java which is specific to hotspot sharedclass;
vm.flagless is set to true for serviceability/jvmti/RedefineClasses/RedefineLeak.java which OpenJ9 passes;
vm.opt.final.ClassUnloading is set to false for serviceability/jvmti/RedefineClasses/RedefinePreviousVersions.java which looks for a hotspot specific Class unloading: has_previous_versions = false.

Related to eclipse-openj9/openj9#16074

FYI @tajila

Signed-off-by: Jason Feng [email protected]

[babsingh]

jenkins test sanity.functional,extended.functional amac jdk19

[babsingh]

Do the three JVMTI tests in eclipse-openj9/openj9#16074 pass with this PR?

[JasonFengJ9]

jenkins test extended.openjdk amac jdk19

[JasonFengJ9]

extended.openjdk PR build still shows the errors eclipse-openj9/openj9#16074 due to the test framework taking the default JDK19 extension repo instead of this PR.
Launched an internal grinder w/ this change and the three tests in question are skipped or passed.

[babsingh]

re #34 (comment):

fyi @AdamBrousseau, @llxia. In the PR builds, the test framework doesn't take the changes from the PR.

[babsingh]

Impact on the tests in eclipse-openj9/openj9#16074 from local testing

https://github.com/ibmruntimes/openj9-openjdk-jdk19/blob/openj9/test/hotspot/jtreg/serviceability/jvmti/RedefineClasses/RedefinePreviousVersions.java

The above test won't run since OpenJ9 does not support ClassUnloading i.e. it has been set to false.

 * @requires vm.opt.final.ClassUnloading
 * @requires vm.flagless

https://github.com/ibmruntimes/openj9-openjdk-jdk19/blob/openj9/test/hotspot/jtreg/serviceability/jvmti/CanGenerateAllClassHook/CanGenerateAllClassHook.java

The above test won't run either since it requires -XX:+UnlockDiagnosticVMOptions, and this option is not supported by OpenJ9.

https://github.com/ibmruntimes/openj9-openjdk-jdk19/blob/openj9/test/hotspot/jtreg/serviceability/jvmti/RedefineClasses/RedefineLeak.java

The above test runs and passes with OpenJ9.

[babsingh]

LGTM. Changes work as expected.

[JasonFengJ9]

Created ibmruntimes/openj9-openjdk-jdk#506