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Editorial Team
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Asked: 2026-05-23T10:39:18+00:00

I am creating an executable JAR that uses a couple XML config files, one

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I am creating an executable JAR that uses a couple XML config files, one for the application and one for log4j. To reference my app config file, I do this:

InputStream config = Util.class.getResourceAsStream("/config/config.xml");

This works fine for my app config, but the problem is that I can’t configure log4j like this. Here is the code that configures log4j:

DOMConfigurator.configure("/config/log4j.xml");

This won’t work because the XML file is going to be stored within the packaged JAR. How can I configure log4j to use an XML or properties file within the JAR?

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1 Answer

  1. Editorial Team

    You can use the URL version of the DOMConfigurator.configure method. The resource will have to be available at/config/log4j.xml.

    DOMConfigurator.configure(Util.class.getResource("/config/log4j.xml")
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