Is there a simple way to remove unused dependencies from a maven pom xml

Question

I have a large Maven project with many modules and many pom xml files  The project has changed and I suspect the pom s contain some unnecessary dependencies  Is there is a command which removes any unused dependencies from a pom

User · Answer

Have you looked at the Maven Dependency Plugin   That won t remove stuff for you but has tools to allow you to do the analysis yourself  I m thinking particularly of  mvn dependency tree

User · Answer

I had similar kind of problem and decided to write a script that removes dependencies for me  Using that I got over half of the dependencies away rather easily   http   samulisiivonen blogspot com 2012 01 cleanin-up-maven-dependencies html

User · Answer

The Maven Dependency Plugin will help  especially the dependency analyze goal      dependency analyze analyzes the dependencies of this project and determines which are  used and declared  used and undeclared  unused and declared    Another thing that might help to do some cleanup is the Dependency Convergence report from the Maven Project Info Reports Plugin

User · Answer

You can use dependency analyze -DignoreNonCompile This will print a list of used undeclared and unused declared dependencies  while ignoring runtime provided test system scopes for unused dependency analysis      Be careful while using this  some libraries used at runtime are considered as unused    For more details refer this link

User · Answer

As others have said  you can use the dependency analyze goal to find which dependencies are used and declared  used and undeclared  or unused and declared  You may also find dependency analyze-dep-mgt useful to look for mismatches in your dependencyManagement section   You can simply remove unwanted direct dependencies from your POM  but if they are introduced by third-party jars  you can use the  lt exclusions gt  tags in a  dependency to exclude the third-party jars  see the section titled Dependency Exclusions for details and some discussion   Here is an example excluding commons-logging from the Spring dependency    lt dependency gt     lt groupId gt org springframework lt  groupId gt     lt artifactId gt spring lt  artifactId gt     lt version gt 2 5 5 lt  version gt     lt exclusions gt       lt exclusion gt         lt groupId gt commons-logging lt  groupId gt         lt artifactId gt commons-logging lt  artifactId gt       lt  exclusion gt     lt  exclusions gt    lt  dependency gt

[maven] Is there a simple way to remove unused dependencies from a maven pom.xml?

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