On Tue, 14 Mar 2023 22:49:07 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:
>> The change:
>> - updates UniqueVtableTest to follow standard SA way - attach to target from
>> subprocess and use SATestUtils.addPrivilegesIfNeeded for the subprocess;
>> - updates several tests in the same directory to resolve
>> NoClassDefFoundError failures; It's known JTReg issue that "@build" actions
>> for part of used shared classes may cause intermittent NoClassDefFoundError
>> in other tests which use the same shared library classpath.
>>
>> Tested: 100 runs on all platforms, no failures
>
> test/hotspot/jtreg/serviceability/sa/UniqueVtableTest.java line 168:
>
>> 166: try {
>> 167: app = LingeredApp.startApp();
>> 168: createAnotherToAttach(app.getPid());
>
> Did you ever figure out why attaching from the main test process sometimes
> fails?
No. It looks like JTReg executes main test process differently than the
sub-process is executed, but I didn't find difference which can cause attach
timeouts.
-------------
PR: https://git.openjdk.org/jdk/pull/13030
