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# PMD

The PMD bundled plugin scans Java source code and other languages, and looks for potential problems such as bugs, dead code, suboptimal code, overcomplicated expressions, and duplicate code. Use the plugin in your code review process to find common programming flaws.

PMD is configurable and can find many different issues.

The PMD libraries are embedded in the plugin, so there are no external tools to install. Because PMD operates on source code files, add the PMD plugin to a chain that populates a workspace.

To configure the PMD step:

1. Add the PMD step to a chain, as described in Create chains.

2. Enter the plugin configuration details:

   Field | Description
   --- | ---
   Title | Enter a name for the plugin step or accept the default name.
   Source folder | Enter the relative stream directory against which to run the analysis, for example: src/main/java Command-line option (should be a relative path): `-dir`
   Rulesets location | Select a ruleset location: Use built-in rulesets (default). Use local rulesets. Use rulesets stored in the stream.
   Rulesets | Enter a comma-separated list of ruleset names, for example: rulesets/java/basic.xml In addition to standard rulesets, you can use a custom ruleset. Command-line option: `-rulesets`
   Project classpath | (Optional) Specify the classpath for libraries used by the source code, for example: commons-collections.jar;derby.jar Command-line option: `-auxclasspath`
   Source encoding | (Optional) Specify the source code encoding, for example, UTF-8. Command-line option: `-encoding`
   Source language | (Optional) Specify the source code language, for example, Java. Command-line option: `-language`
   Language version | (Optional) Specify the version of the source code language. Command-line option: `-version`
   Show suppressed | (Optional) Select to show suppressed findings. Example: false Command-line option: `-showsuppressed`
   Suppress marker | (Optional) Specify the suppress marker, for example, NOPMDNEWMARKER. Command-line option: `-suppressmarker`

The PMD command-line option shows how each configuration field maps to the PMD command-line tool.

Tip: The PMD plugin and PMD command-line tool use the PMD core library. Any options that you can pass to the PMD command-line tool can also be passed to the PMD plugin.

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See also:

- Use plugins
- View chain runs

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