test/gc/g1/TestRegionLivenessPrint.java uses the WhiteBoxAPI but misses -XX:+UnlockDiagnosticVMOption flag:
Error: VM option 'WhiteBoxAPI' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.
Error: The unlock option must precede 'WhiteBoxAPI'.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Error: VM option 'WhiteBoxAPI' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.
Error: The unlock option must precede 'WhiteBoxAPI'.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.