Adobe (formerly Macromedia) JRun 4 was released in 2002. Since then, Java web development has moved on somewhat. JRun 4 supports Servlet 2.3 and JSP 1.2, while most servers are now on Servlet 2.4 and JSP 2.0. At four years since the last release, many developers assumed development of the server had ceased.

But now it looks like JRun might be set to rise from the ashes, with Adobe looking for beta testers of a major new release. At this stage, Adobe is tight-lipped on what new features will come with this version–EJB 3.0? Jetty-like continuations? More affordable pricing?

I’ve asked for a look at the beta, and will report what I can when I can.

Kevin began developing for the Web in 1995 and is a highly respected technical author. Kev is a world-renowned author, speaker and JavaScript expert. He has a passion for making web technology easy to understand by anyone. Yes, even you!

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  • ajking

    I’d be surprised if Flex 2.0 wasn’t part of it somehow. I might even suggest that the reason JRun has been re-started is to provide a backend for Flex — the latter is where Adobe hopes to see a lot of developer activity.

  • Robin Hilliard

    From what I’ve heard JRun 4 has remained reasonably successful in the OEM market due to it’s small kernel and JMX/JINI based architecture.

    Apart from Flex (my specialty) it has also been used as the core of several other successful formerly Macromedia products, e.g. ColdFusion and Breeze, and should also be handy for Adobe’s Livecycle product line which is J2EE based.

  • Bhakti

    Thanks Robin,
    JRun has definitely been successful so far and now its improved. I would just like to inform you that Adobe is coming up with an Updater 7 for Jrun4. The beta version is already out. I would certainly recommend everyone to use it. Please register yourself here.
    https://prerelease.adobe.com/callout/default.html?callid={046DAD6A-D2F3-47E5-A745-E1C9F38570DA}

    Thanks and Regards,
    Bhakti Pingale
    Adobe ColdFusion team

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