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Excluding a dependency in a Maven plugin can be necessary to manage dependencies effectively and prevent conflicts or redundancies in the project. In this article, we will learn how to exclude a dependency in a Maven plugin using the <exclusions> tag within the <dependencies> section of the plugin configuration in the project’s POM (Project Object Model) file.
Prerequisites:- Java Development Kit
- Maven Installation
- Integrated Development Environment
Tools and Technologies:- Maven Repository
- POM File
- Maven Plugins
- Maven Archetypes
- Build Life cycle
Implementation to Exclude a Dependency in a Maven PluginIn Maven, you might want to exclude a transitive dependency included via a plugin to avoid version conflicts or redundant libraries. This can be done using the <exclusions> tag in the POM file.
Let’s assume you have a Maven project that uses the maven-compiler-plugin, and you want to exclude a specific dependency commons-logging that is pulled in transitively by another library.
XML
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>my-app</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<dependencies>
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-utils</artifactId>
<version>3.0.24</version>
<exclusions>
<exclusion>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
- The maven-compiler-plugin is configured to compile the source code.
- A specific version of the plexus-utils dependency is included.
- The commons-io transitive dependency is excluded to avoid conflicts.
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