Job queuing library/software for Java

The premise is this: For asynchronous job processing I have a homemade framework that:

• Stores jobs in database
• Has a simple java api to create more jobs and processors for them
• Processing can be embedded in a web application or can run by itself in on different machines for scaling out
• Web UI for monitoring the queue and canceling queue items

I would like to replace this with 开发者_开发百科some ready made library because I would expect more robustness from those and I don't want to maintain this. I've been researching the issue and figured you could use JMS for something similar. But I would still have to build a simple java API, figure out a runtime where I would put the processing when I want to scale out and build a monitoring UI. I feel like the only thing I would benefit from JMS is that I would not have to do is the database stuff.

Is there something similar to this that is ready made?

UPDATE

Basically this is the setup I would want to do:

• Web application runs in a Servlet container or Application Server
• Web application uses a client api to create jobs
• X amount of machines process those jobs
• Monitor and manage jobs from an UI

You can use Quartz:

http://www.quartz-scheduler.org/

Check out Spring Batch.

Link to sprint batch website: http://projects.spring.io/spring-batch/