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pmd

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, PLSQL, Salesforce.com Visualforce, Apache Velocity, XML, XSL. Additionally it includes CPD, the copy-paste-detector. CPD finds duplicated code in Java, C, C++, C#, Groovy, PHP, Ruby, Fortran, JavaScript, PLSQL, Apache Velocity, Scala, Objective C, Matlab, Python, Go, Swift and Salesforce.com Apex.
https://pmd.github.io/
BSD-style
PMD
Tom Copeland David Dixon-Peugh Ole-Martin Mork Miguel Griffa Philippe Herlin Jiger Patel Radim Kubacki Tomasz Slota Alan Ezust Nascif Abousalh Neto Allan Caplan Sven Jacob Wouter Zelle Brian Remedios Xavier Le Vourch Ryan Gustafson Johan Nagels Torsten Kleiber Romain Pelisse Andreas Dangel Philip Graf Juan Martín Sotuyo Dodero
forth flaws creation common additionally ruby finds catch apache supports object includes scala detector python programming apex duplicated empty velocity matlab unused copy javascript groovy fortran objective unnecessary visualforce analyzer code blocks like plsql variables source paste salesforce java swift
Files download
File Operation
pmd-6.1.0.pom download
Apache Maven 
<dependency>
  <groupId>net.sourceforge.pmd</groupId>
  <artifactId>pmd</artifactId>
  <version>6.1.0</version>
  <type>pom</type>
</dependency>
Gradle Groovy 
implementation 'net.sourceforge.pmd:pmd:6.1.0'
Gradle Kotlin 
implementation("net.sourceforge.pmd:pmd:6.1.0")
Scala SBT 
libraryDependencies += "net.sourceforge.pmd" % "pmd" % "6.1.0"
Groovy Grape 
@Grapes(
  @Grab(group='net.sourceforge.pmd', module='pmd', version='6.1.0')
)
Apache Ivy 
<dependency org="net.sourceforge.pmd" name="pmd" rev="6.1.0" />
Leiningen 
[net.sourceforge.pmd/pmd "6.1.0"]
Apache Buildr 
'net.sourceforge.pmd:pmd:jar:6.1.0'
Dependencies
The project has no third-party dependencies