In test/jtreg-ext/requires/VMProps.java I don't think these are used anymore with RTM removal.

    /**
     * @return "true" if compiler in use supports RTM and "false" otherwise.
     * Note: Lightweight locking does not support RTM (for now).
     */
    protected String vmRTMCompiler() {
        boolean isRTMCompiler = false;

        if (Compiler.isC2Enabled() &&
            (Platform.isX86() || Platform.isX64() || Platform.isPPC()) &&
            is_LM_LIGHTWEIGHT().equals("false")) {
            isRTMCompiler = true;
        }
        return "" + isRTMCompiler;
    }

    /**
     * @return true if VM runs RTM supported CPU and false otherwise.
     */
    protected String vmRTMCPU() {
        return "" + CPUInfo.hasFeature("rtm");
    }