The following test failed in the Valhalla CI:

applications/javafuzzer/JF_5000Tests.java

Here's a snippet from the log file:

#section:main
----------messages:(7/533)----------
command: main -Xbootclasspath/a:. -Dtest.generator.number_of_tests=5000 -Dtest.generator.filter=javafuzzer_tests applications.javafuzzer.TestGeneratorRunner
reason: User specified action: run main/othervm/timeout=80000 -Xbootclasspath/a:. -Dtest.generator.number_of_tests=5000 -Dtest.generator.filter=javafuzzer_tests applications.javafuzzer.TestGeneratorRunner
started: Sun Jan 11 06:58:54.305 GMT 2026
Mode: othervm [/othervm specified]
Process id: 1071
finished: Sun Jan 11 09:12:29.928 GMT 2026
elapsed time (seconds): 8015.623
----------configuration:(0/0)----------
----------System.out:(17/1928)----------
For random generator using seed: 1836556085
To re-run test with same seed value please add "-Djdk.test.lib.random.seed=1836556085" to command line.
Using the following path for FailureHandler: '/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-27-valhalla+1-19/macosx-aarch64-debug.test/failure_handler/jtregFailureHandler.jar'
Using JRuby dist: /System/Volumes/Data/mesos/work_dir/slaves/da1065b5-7b94-4f0d-85e9-a3a252b9a32e-S69277/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/731c03bd-8cac-4cf2-9e1b-19ef611b1ac7/runs/0904e032-a659-4c8f-a0cb-edaf399c5b3d/./jib-data/install/org/jruby/jruby-dist/9.2.12.0/jruby-dist-9.2.12.0-bin.zip/jruby-9.2.12.0
Using JavaFuzzer dist: /System/Volumes/Data/mesos/work_dir/slaves/da1065b5-7b94-4f0d-85e9-a3a252b9a32e-S69277/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/731c03bd-8cac-4cf2-9e1b-19ef611b1ac7/runs/0904e032-a659-4c8f-a0cb-edaf399c5b3d/./jib-data/install/com/oracle/jpg/bigapps/javafuzzer/javafuzzer/4.0/javafuzzer-4.0.zip
Using FuzzGen dist: /System/Volumes/Data/mesos/work_dir/slaves/da1065b5-7b94-4f0d-85e9-a3a252b9a32e-S69277/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/731c03bd-8cac-4cf2-9e1b-19ef611b1ac7/runs/0904e032-a659-4c8f-a0cb-edaf399c5b3d/./jib-data/install/com/oracle/jpg/bigapps/javafuzzer/fuzzgen/1.5/fuzzgen-1.5.zip
Generating 5000 tests
Summary total: GEN: 23:35:56 COMP: 00:40:45 REF: 30:30:33 VER: 01:05:43
Summary mean : GEN: 00:00:16.991 COMP: 00:00:00.489 REF: 00:00:21.966 VER: 00:00:00.788
======================
Total: 5000; Failed: 1; Passed: 2926; Ignored: 2073
======================
--------------------------------------------------
TEST: javafuzzer_tests/Test_328.java
TEST RESULT: Failed. Difference in 'STDOUT' stream.
Expected: d3 iArr lArr1 = 4606000404041817748,-445567,25472211869784821
Actual : d3 iArr lArr1 = 4606000404041817748,-412743,25472211869784821
----------System.err:(18/1566)----------
WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
WARNING: sun.misc.Unsafe::arrayBaseOffset has been called by net.logstash.logback.encoder.com.lmax.disruptor.RingBufferFields (file:/System/Volumes/Data/mesos/work_dir/jib-master/install/com/oracle/java/jib/jib/3.0-SNAPSHOT/jib-3.0-20260109.185241-557-distribution.zip/jib-3.0-SNAPSHOT-distribution/lib/logstash-logback-encoder-4.7.jar)
WARNING: Please consider reporting this to the maintainers of class net.logstash.logback.encoder.com.lmax.disruptor.RingBufferFields
WARNING: sun.misc.Unsafe::arrayBaseOffset will be removed in a future release
java.lang.RuntimeException: Some tests failed, please investigate
at jdk.test.lib.Asserts.fail(Asserts.java:715)
at applications.javafuzzer.TestGeneratorRunner.reportFailuresIfAny(TestGeneratorRunner.java:172)
at applications.javafuzzer.TestGeneratorRunner.performFullCycle(TestGeneratorRunner.java:193)
at applications.javafuzzer.TestGeneratorRunner.main(TestGeneratorRunner.java:226)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1516)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Some tests failed, please investigate
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Some tests failed, please investigate
----------rerun:(44/9794)*----------