Question

Like this org.carrot2 is depending on commons-httpclient 3.1 So how I can change this commons-httpclient 3.1 to HttpClient 4.1.1. I am working in eclipse. As I want to remove
commons-httpclient:3.1 from those who are depending on this jar file and I want to replace with HttpClient 4.1.1.

So what I was trying to do.. I doubled click on this org.carrot2 from dependency hierarchy folder and went into its pom.xml file and was trying to change commons-httpclient 3.1 to httpclient 4.1.1 but it is not allowing me to change as backspace and delete is not working on that..

Any suggestions will be appreciated..

Answer 1

Firstly please ensure that the mentioned artifact can work properly with the HttpClient 4.1.1.

We can define “the exclusion” for each dependency as it is mentioned at http://maven.apache.org/pom.html#Exclusions

Exclusions explicitly tell Maven that
you don’t want to include the
specified project that is a dependency
of this dependency (in other words,
its transitive dependency)

exclusions: Exclusions contain one or
more exclusion elements, each
containing a groupId and artifactId
denoting a dependency to exclude.
Unlike optional, which may or may not
be installed and used, exclusions
actively remove themselves from the
dependency tree.

<dependencies>
  <dependency>
    <groupId>the_group</groupId>
    <artifactId>the_artifact</artifactId>
    <version>the_version</version>
    <exclusions>
      <exclusion>
        <groupId>the_apache_group</groupId>
        <artifactId>the_http_client_artifact</artifactId>
      </exclusion>
    </exclusions>
  </dependency>

  <dependency>
    <groupId>the_apache_group</groupId>
    <artifactId>the_http_client_artifact</artifactId>
    <version>4.1.1</version>
  </dependency>
  ...
</dependencies>

I hope this may help to achieve the requirement.

Regards,

Charlee Ch.