SE - 62 - How to exclude a dependency in Maven and how to make a dependency optional ?

Sometimes there is requirement to make a dependency optional or exclude that particular dependency. We can achieve it by manually deleting it from .m2 folder . There is another efficient way to do it through pom.xml file by using particular tags. Lets see how :


1) To make a dependency Optional :

  <dependencies>
    <dependency>
      <groupId>org.seleniumhq</groupId>
      <artifactId>selenium</artifactId>
      <version>1.0</version>
      <optional>true</optional> <!-- we set value as true or false only -->
    </dependency>
  </dependencies>

Here we are simply using a optional tag in particular dependency and set the optional tag either as true or false.

2) To exclude a particular dependency :

  <exclusions>
        <exclusion> 
      <groupId>org.seleniumhq</groupId>
      <artifactId>selenium</artifactId>
        </exclusion>
      </exclusions> 

Here we can add the dependencies that can be excluded from the dependency by using this