The following test failed in the JDK18 CI:

testlibrary_tests/ir_framework/tests/TestIRMatching.java

Here's a snippet from the log file:

TestIRMatching failed with one or more exceptions:
Should have thrown exception
java.lang.RuntimeException: Should have thrown exception
at jdk.test.lib.Asserts.fail(Asserts.java:594)
at ir_framework.tests.Utils.shouldHaveThrownException(Utils.java:38)
at ir_framework.tests.TestIRMatching.runCheck(TestIRMatching.java:342)
at ir_framework.tests.TestIRMatching.main(TestIRMatching.java:146)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:51)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:833)
---------
java.lang.RuntimeException: TestIRMatching failed with one or more exceptions - check stderr and stdout
at ir_framework.tests.TestIRMatching.main(TestIRMatching.java:312)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:51)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:833)

JavaTest Message: Test threw exception: java.lang.RuntimeException: TestIRMatching failed with one or more exceptions - check stderr and stdout
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: TestIRMatching failed with one or more exceptions - check stderr and stdout
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