Java23: Thread.suspend() and Thread.resume(), etc. have been removed

[keithc-ca]

Failure link

Test code no longer compiles against the head stream:

• https://openj9-jenkins.osuosl.org/job/Test_openjdknext_j9_sanity.functional_aarch64_linux_Personal_testList_0/31.

The upstream change

• 8320532: Remove Thread/ThreadGroup suspend/resume

Failure output (captured from console output)

10:27:04      [javac] /home/jenkins/workspace/Test_openjdknext_j9_sanity.functional_aarch64_linux_Personal_testList_0/aqa-tests/functional/Java8andUp/src/org/openj9/test/java/lang/Test_Thread.java:723: error: cannot find symbol
10:27:04      [javac]               ct.suspend();
10:27:04      [javac]                 ^
10:27:04      [javac]   symbol:   method suspend()
10:27:04      [javac]   location: variable ct of type Thread

[pshipton]

@llxia is there somebody who can fix this?

[llxia]

@LongyuZhang could you please take a look? Thanks

[keithc-ca]

I think we may have arrived at the point where it makes sense to use the Java preprocessor on test code as well so the effects of API differences like this can simply be encapsulated like this:

/*[IF JAVA_SPEC_VERSION < 23]*/
// tests that depend upon API removed in Java 23
/*[ENDIF] JAVA_SPEC_VERSION 23 */

[pshipton]

Changes are merged.