class PasswordStore {

    private static RuntimeException invalidFile(int lineNumber, String message, Throwable cause)
    {
        return new PrestoException(CONFIGURATION_INVALID, format("Error in password file line %s: %s", lineNumber, message), cause);
    }

    public  PasswordStore(File file, int cacheMaxSize);
    @VisibleForTesting public  PasswordStore(List<String> lines, int cacheMaxSize);

}