The following test failed in the JDK20 CI:

jdk/jshell/ToolBasicTest.java

Here's a snippet from the log file:

#section:testng
----------messages:(8/435)----------
command: testng ToolBasicTest
reason: User specified action: run testng/timeout=600 ToolBasicTest
started: Wed Nov 23 17:37:27 UTC 2022
Mode: agentvm
Agent id: 7
Additional exports to unnamed modules from @modules: jdk.compiler/com.sun.tools.javac.api jdk.compiler/com.sun.tools.javac.main jdk.jdeps/com.sun.tools.javap jdk.jshell/jdk.internal.jshell.tool
finished: Wed Nov 23 17:37:53 UTC 2022
elapsed time (seconds): 26.463
----------configuration:(18/1605)*----------

<snip>

----------System.out:(127/6496)----------
config ReplToolTesting.setUp(): success
test ToolBasicTest.elideStartUpFromList(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.elideStartUpFromSave(): success

<snip>

config ReplToolTesting.setUp(): success
test ToolBasicTest.testOpen(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testOpenFileOverHttp(): failure
java.lang.AssertionError: Expected "File 'http://127.0.0.1:52141/script&#39; for 'jshell' is not found.
" command error output, got: "File 'http://127.0.0.1:52141/script&#39; for 'jshell' is not found.
" expected [File 'http://127.0.0.1:52141/script&#39; for 'jshell' is not found.
] but found [File 'http://127.0.0.1:52141/script&#39; for 'jshell' is not found.
]
at org.testng.Assert.fail(Assert.java:99)
at org.testng.Assert.failNotEquals(Assert.java:1037)
at org.testng.Assert.assertEqualsImpl(Assert.java:140)
at org.testng.Assert.assertEquals(Assert.java:122)
at org.testng.Assert.assertEquals(Assert.java:629)
at ReplToolTesting.testRawCheck(ReplToolTesting.java:338)
at ReplToolTesting.testRaw(ReplToolTesting.java:308)
at ReplToolTesting.test(ReplToolTesting.java:259)
at ReplToolTesting.test(ReplToolTesting.java:234)
at ToolBasicTest.testOpenFileOverHttp(ToolBasicTest.java:547)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:599)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.testng.TestRunner.privateRun(TestRunner.java:764)
at org.testng.TestRunner.run(TestRunner.java:585)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
at org.testng.TestNG.runSuites(TestNG.java:1069)
at org.testng.TestNG.run(TestNG.java:1037)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:93)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:312)
at java.base/java.lang.Thread.run(Thread.java:1591)
config ReplToolTesting.setUp(): success
test ToolBasicTest.testOpenLocalFileUrl(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testOpenResource(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testRedeclareVariableNoInit(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testRemoteExit(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testRerun(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testRerunIdRange(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testReset(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testSave(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testStartRetain(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testStartSave(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testStartupFileOption(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testStop(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testSystemExitStartUp(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testVarsWithNotActive(): success
config ReplToolTesting.setUp(): success
test ToolBasicTest.testWarningUnchecked(): success

===============================================
jdk/jshell/ToolBasicTest.java
Total tests run: 39, Passes: 38, Failures: 1, Skips: 0
===============================================

----------System.err:(10/538)----------
java.lang.Exception: failures: 1
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:95)
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:1591)

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

result: Failed. Execution failed: `main' threw exception: java.lang.Exception: failures: 1