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Editorial Team
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Asked: 2026-06-17T02:44:28+00:00

I am using checkstyle 5.5 for my project and building using Jenkins 1.462. My

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I am using checkstyle 5.5 for my project and building using Jenkins 1.462.

My project builds successfully, but every java class in my project causes Checkstyle to create a high priority, TreeWalker error like below:

ProductComparisonService.java:0, TreeWalker, Priority: High Got an
exception – java.lang.ClassCastException: antlr.CommonToken cannot be
cast to antlr.Token

No description available. Please upgrade to latest checkstyle version.

I tried upgrading to checkstyle 5.6 but that did not solve the problem. I’d appreciate any ideas.

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1 Answer

  1. Editorial Team

    You have a conflicting version of antlr(works) in some other plugin that you’re using, and that is interfering in the classloader. You need to unload that other plugin.

    I haven’t myself tested, but here are some recommended tools that might be able to find the offending jar for you:

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