The following test failed in the JDK18 CI:

compiler/uncommontrap/TraceDeoptimizationNoRealloc.java

Here's a snippet from the log file:

#section:main
----------messages:(4/454)----------
command: main -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:+IgnoreUnrecognizedVMOptions -XX:+TraceDeoptimization compiler.uncommontrap.TraceDeoptimizationNoRealloc
reason: User specified action: run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:+IgnoreUnrecognizedVMOptions -XX:+TraceDeoptimization compiler.uncommontrap.TraceDeoptimizationNoRealloc
Mode: othervm [/othervm specified]
elapsed time (seconds): 0.004
----------configuration:(0/0)----------
----------System.out:(0/0)----------
----------System.err:(4/278)----------
Error: VM option 'TraceDeoptimization' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.
Error: The unlock option must precede 'TraceDeoptimization'.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
----------rerun:(36/5863)*----------