On Tue, 11 Feb 2025 09:03:24 GMT, SendaoYan <s...@openjdk.org> wrote:
>> H all,
>>
>> This PR add `/native` keyword in the test header for virtual thread tests.
>> The `/native` keyword will make run the related tests by jtreg standalone
>> more friendly.
>>
>> I runed all the tests without -nativepath argument and find the fail tests.
>> This will find all the virtual thread tests which missing '/native' flag.
>>
>> 1. java/lang/management/ThreadMXBean/VirtualThreads.java#default
>>
>> VirtualThreads.java:223 call "invoker()" in
>> test/lib/jdk/test/lib/thread/VThreadPinner.java file, which will call the
>> native function "call".
>> java/lang/management/ThreadMXBean/VirtualThreads.java#no-vmcontinuations run
>> this test with VM option "-XX:-VMContinuations" and
>> `assumeTrue(VThreadScheduler.supportsCustomScheduler(), "No support for
>> custom schedulers");` will make junit skip the
>> 'testGetThreadInfoCarrierThread' unit test, so
>> 'VirtualThreads.java#no-vmcontinuations' do not need '/native' keywork.
>>
>> 2. java/lang/Thread/virtual/stress/PinALot.java
>>
>> PinALot.java:58 call "invoker()" in
>> test/lib/jdk/test/lib/thread/VThreadPinner.java file, which will call the
>> native function "call".
>>
>> 3. java/lang/Thread/virtual/SynchronizedNative.java
>>
>> Call System.loadLibrary("SynchronizedNative") at line 85.
>>
>> 4. Tests java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java,
>> java/lang/Thread/virtual/ThreadAPI.java,
>> java/lang/Thread/virtual/RetryMonitorEnterWhenPinned.java,
>> java/lang/Thread/virtual/MonitorWaitNotify.java,
>> java/lang/Thread/virtual/MonitorPinnedEvents.java,
>> java/lang/Thread/virtual/MonitorEnterExit.java and other tests are similar
>> to java/lang/Thread/virtual/stress/PinALot.java
>>
>>
>> - Why we need the '/native' keywork?
>>
>> I usually run the tests through jtreg directively, rather than run the tests
>> through make test. If I run the test which load the native shared library
>> files and the test missing '/native' keyword but I forgot to pass the
>> '-nativepath' argument to jtreg, or pass the incorrect '-nativepath'
>> argument to jtreg, sometimes it will report timeouted after a long time,
>> such as java/lang/Thread/virtual/JfrEvents.java. If we add the missing
>> '/native' keywork, jtreg will report 'Error. Use -nativepath to specify the
>> location of native code' right away. So add the missing '/native' keyword
>> will make run the tests more friendly.
>>
>> Change has been verified locally, test-fix, no risk.
>
> SendaoYan has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Remove the additional check for virtual thread of
> test/jdk/java/lang/Thread/virtual/ThreadPollOnYield.java
912c1ab3 looks okay.
-------------
Marked as reviewed by alanb (Reviewer).
PR Review: https://git.openjdk.org/jdk/pull/23550#pullrequestreview-2608124096
