@Override
    protected void configure() {
        super.configure();
        LOGGER.debug(() -> "Configure() called on " + this.getClass().getCanonicalName());
    }
@return An optional target version for flyway to migrate up to (inclusive).
Intended to be overridden only by classes testing specific migrations.
stroom-db-util/src/main/java/stroom/db/util/AbstractFlyWayDbModule.java