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Editorial Team
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Asked: 2026-05-23T21:46:34+00:00

I’d like to make sure I’m not including duplicate libraries in my Maven project.

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I’d like to make sure I’m not including duplicate libraries in my Maven project. I’m pulling in quite a few dependencies from a few different repositories including main, Spring’s repo, and JBoss’ repository. How can I see a graph of the dependencies so I can make sure I’m not depending on multiple versions of a single library?

It would be kind of a bummer if I was including something like org.springframework:spring-core:3.0.1.RELEASE and org.springframework:org.springframework.spring-core:3.0.5.RELEASE which actually do show up as different dependencies, as weird as it sounds, because Spring’s repository names things weirdly. What can I do to make sure I don’t have duplicate dependencies?

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1 Answer

  1. Editorial Team

    The dependency:tree maven plugin should do what you want and show the tree.

    Alternatively force Maven2 to copy dependencies into target/lib to copy the the artifacts in the target/lib directory which should also show duplicates but you would still need to grep all the POMs in the ~/.m2/repository to see which library is pulling in which version manually and that would be time consuming for large local repositories.

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