class Configuration {

    public void setMaxWorkerThreadPoolSize(int maxWorkerThreadPoolSize) {
        if (maxWorkerThreadPoolSize <= 0) {
            throw new IllegalArgumentException("maxWorkerThreadPoolSize: "
                    + maxWorkerThreadPoolSize + " (expected: > 0)");
        }
        this.maxWorkerThreadPoolSize = maxWorkerThreadPoolSize;
    }

      Configuration();

}