The following test fails in the JDK16 CI using product bits:

compiler/c1/TestTraceLinearScanLevel.java

Here's a snippet from the log file:

#section:main
----------messages:(4/256)----------
command: main -XX:TraceLinearScanLevel=4 compiler.c1.TestTraceLinearScanLevel
reason: User specified action: run main/othervm -XX:TraceLinearScanLevel=4 compiler.c1.TestTraceLinearScanLevel 
Mode: othervm [/othervm specified]
elapsed time (seconds): 0.009
----------configuration:(0/0)----------
----------System.out:(0/0)----------
----------System.err:(3/205)----------
Error: VM option 'TraceLinearScanLevel' is develop and is available only in debug version of VM.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
----------rerun:(34/5690)*----------