The following test failed in the JDK20 CI:

gc/g1/TestVerifyGCType.java

Here's a snippet from the log file:

----------System.err:(15/939)----------
java.lang.RuntimeException: Missing expected verification pattern Verifying After GC for: Pause Young (Prepare Mixed): expected true, was false
at jdk.test.lib.Asserts.fail(Asserts.java:594)
at jdk.test.lib.Asserts.assertTrue(Asserts.java:486)
at gc.g1.TestVerifyGCType.verifyType(TestVerifyGCType.java:202)
at gc.g1.TestVerifyGCType.verifyCollection(TestVerifyGCType.java:197)
at gc.g1.TestVerifyGCType.testYoungEvacFail(TestVerifyGCType.java:135)
at gc.g1.TestVerifyGCType.main(TestVerifyGCType.java:57)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
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:1599)

JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: Missing expected verification pattern Verifying After GC for: Pause Young (Prepare Mixed): expected true, was false

Starting this as a P2 since this is Tier1 failure.