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Editorial Team
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Asked: 2026-05-13T09:06:11+00:00

I am in a situation where I basically want to be able to have

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I am in a situation where I basically want to be able to have a web project in Eclipse where the WebContents folder is merged from multiple projects instead of only a single dynamic web project.

If I have “a.jsp” in project A, and “b.jsp” in project B, I would like to end up with a single web application in the web container where “a.jsp” and “b.jsp” sit next to each other in the same folder. It would be perfect if all files, not just the jsp-files, could be merged like this.

This is to be able to have a core version of our application but being able to handle customer specific changes easily.

I know I can do this with suitable ant magic, but we want to have something that works well for our current Eclipse based development process. We will use JSR-330 dependency injection on Java classes, and essentially I’d like something along the lines of dependency injection but just for any resource and not just classes.

Can Eclipse do this?

If Eclipse cannot, would an EAR deployment be suitable perhaps? I currently have experience with WAR’s only.

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1 Answer

  1. Editorial Team

    If using Maven is an option, then Maven overlays would be perfect here and it should theoretically be supported by the m2eclipse plugin. But I don’t have any experience with that and there might be some issues (see MNGECLIPSE-599) so this would require some testing.

    Nevertheless, the comments of MNGECLIPSE-599 are pretty interesting, especially this one:

    Any love for this issue? Our entire team has moved to Netbeans for WAR development because of this. We are basically waiting for Servlet 3.0 to solve this issue for us (Servlet 3.0 would effectively negate our need to do overlays in Maven) Our company is big on reducing copy-paste so we use overlays to manage WAR media that must be common in our apps.

    The way Java EE 6 would make overlays obsolete is not crystal clear for me (through Web Fragments?) but the fact is that Eclipse’s WTP release with Java EE 6 support has been delayed to June 2010. So, until then, you’ll need extra tooling (e.g. maven overlays) or should maybe consider switching to NetBeans.

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