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PMD is an extensible multilanguage static code analyzer. It’s mainly concerned with Java. CodeRabbit runs PMD version 7.26.0.

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Files

PMD will run on files with the following extensions:
  • .java
  • .jsp
  • .kt (Kotlin)
  • .apex (Salesforce Apex)
  • pom.xml (Maven)

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Configuration

PMD uses an XML configuration file when one is available. If no PMD configuration is present, CodeRabbit generates a default ruleset based on the selected review profile. PMD supports the following config files:
  • User-defined config file set at reviews.tools.pmd.config_file in your project’s .coderabbit.yaml file or setting the “Reviews → Tools → PMD → Config File” field in CodeRabbit’s settings page.
  • If no user-defined config file is found, CodeRabbit looks for the following config file in the repo:
    • ruleset.xml
If neither a user-defined config file nor ruleset.xml is found, CodeRabbit uses its generated default ruleset.

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When we skip PMD

CodeRabbit will skip running PMD when:
  • PMD is disabled in CodeRabbit settings or .coderabbit.yaml.
  • PMD is already running in GitHub workflows.