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Editorial Team
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Asked: 2026-05-13T21:26:35+00:00

I know it is still not quite popular, since the spec was released just

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I know it is still not quite popular, since the spec was released just a few months ago.

I haven’t “installed” weld yet, I’m just reading, and by this question I want to make sure I’ve understood this important point correct:

Is resolution of beans that are in 3rd-party jars achieved by declaring them as <alternatives> in your beans.xml?

If not, how to use beans from 3rd party libraries that don’t have beans.xml ?

Putting the jar on the classpath won’t work unless there is beans.xml in their META-INF, which you can’t make true for 3rd party jars. (see Gavin King’s post on the subject)

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  1. Editorial Team

    why think so complicated?

    Simply make a producerMethod for those 3rd party classes.

    Let’s assume you have a 3rd party library which automatically takes PDF files and sends them per faximile, and you like to use something like

    private @Inject PdfFaxService faxService;

    in your code, then you could simply provide this with a producer method. The PdfFaxService works stateless, so we can safely assume that we can make it @ApplicationScoped:

    public @Produces @ApplicationScoped PdfFaxService createFaxService() {
  return new PdfFaxService(initparameters);
}

    somewhere.

    hth.

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