The following test failed in the JDK21 CI:

com/sun/jdi/PopAndInvokeTest.java

Here's a snippet from the log file:

----------System.out:(18/1082)----------
vmOpts: '-Xmx768m -XX:MaxRAMPercentage=6.25 -Dtest.boot.jdk=/opt/mach5/mesos/work_dir/jib-master/install/jdk/19/36/bundles/linux-aarch64/jdk-19_linux-aarch64_bin.tar.gz/jdk-19 -Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/741e9afd-8c02-45c3-b2e2-9db1450d0832-S43793/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/c3c67266-0d6b-489e-b298-99eac7c63975/runs/526c12d3-0a58-4a90-bbe8-db640a8ad765/testoutput/test-support/jtreg_open_test_jdk_jdk_jdi/tmp -ea -esa'
javaOpts: '-XX:+CreateCoredumpOnCrash -XX:+UseZGC'
JVM version:21-ea
JDI version: 21.0
JVM description: Java Debug Interface (Reference Implementation) version 21.0
Java Debug Wire Protocol (Reference Implementation) version 21.0
JVM Debug Interface version 21.0
JVM version 21-ea (Java HotSpot(TM) 64-Bit Server VM, mixed mode, sharing)
    debuggee: Howdy!
Debugger: Popped back to the call to A()
Debugger: Doing invoke
    debuggee: invokee
Debugger: invoke done
Debugger: Resuming debuggee
    debuggee: in A
Debugger: Suspending debuggee
    debuggee: in waiter
Debugger: Popping frame for waiter
----------System.err:(16/883)----------
[1ms] run args: [PopAndInvokeTarg]
com.sun.jdi.NativeMethodException
at jdk.jdi/com.sun.tools.jdi.StackFrameImpl.pop(StackFrameImpl.java:401)
at jdk.jdi/com.sun.tools.jdi.ThreadReferenceImpl.popFrames(ThreadReferenceImpl.java:560)
at PopAndInvokeTest.runOnce(PopAndInvokeTest.java:165)
at PopAndInvokeTest.runTests(PopAndInvokeTest.java:114)
at TestScaffold.startTests(TestScaffold.java:434)
at PopAndInvokeTest.main(PopAndInvokeTest.java:91)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:312)
at java.base/java.lang.Thread.run(Thread.java:1592)

JavaTest Message: Test threw exception: com.sun.jdi.NativeMethodException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: com.sun.jdi.NativeMethodException

Please note this is not the same failure mode as:

JDK-8305632 Test com/sun/jdi/PopAndInvokeTest.java fails with OpaqueFrameException

which occurs with Loom.