# PMD

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## About

**PMD** is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks,
unnecessary object creation, and so forth. It supports Java, JavaScript, Salesforce.com Apex and Visualforce, PLSQL, Apache Velocity,
XML, XSL.

Additionally it includes **CPD**, the copy-paste-detector. CPD finds duplicated code in
C/C++, C#, Dart, Fortran, Go, Groovy, Java, JavaScript, JSP, Kotlin, Matlab,
Objective-C, Perl, PHP, PLSQL, Python, Ruby, Salesforce.com Apex, Scala, Swift and Visualforce.

## Source and Documentation

Our latest source of PMD can be found on [GitHub](https://github.com/pmd/pmd). Fork us!

*   [How to build PMD](BUILDING.md)
*   [How to contribute to PMD](CONTRIBUTING.md)

The rule designer is developed over at [pmd/pmd-designer](https://github.com/pmd/pmd-designer).
Please see [its README](https://github.com/pmd/pmd-designer#contributing) for
developer documentation.

## News and Website

More information can be found on our [Website](https://pmd.github.io) and on [SourceForge](https://sourceforge.net/projects/pmd/).