according to javadoc, a notifyInstall event(HotSpotVMEventListener) should be called only for successfull code install:

    /**
     * Notify on successful install into the CodeCache.
     *
     * @param hotSpotCodeCacheProvider
     * @param installedCode
     * @param compResult
     */

but current HotSpotCodeCacheProvider::installMethod just call logOrDump=>....=>...notifyInstall(...) without any checks of runtime.getCompilerToVM().installCode result.