Jonathan Lalou's blog

Case: you work on two different projects, which use different repositories. How to search, find and download needed jars owing to the project?

Maven2 allows you to define different profiles.
For that, edit your Maven2 config file, available at $HOME/.m2/settings.xml.

Define your first profile:

<profile>
    <properties>
       <maven.user>jlalou</maven.user>
       <myProject.version>12.3</myProject.version>
    </properties>
    <repositories><repository>
  <id>FirstProjectID</id>
  <name>My First Project</name>
  <url>http://blabla.bla.bla</url>
  <releases>
    <enabled>true</enabled>
    <checksumPolicy>warn</checksumPolicy>
  </releases>
  <snapshots>
    <enabled>true</enabled>
  <checksumPolicy>fail</checksumPolicy>
  </snapshots>
</repository></repositories>
</profile>

Define your first profile:

<profile>
    <properties>
      <maven.user>genericUser</maven.user>
      <myProject.version>45.6</myProject.version>
    </properties>
    <repositories><repository>
  <id>SecondProjectID</id>
  <name>My Personnal Project</name>
  <url>http://foo.foo.foo</url>
  <releases>
    <enabled>true</enabled>
    <checksumPolicy>warn</checksumPolicy>
  </releases>
  <snapshots>
    <enabled>true</enabled>
  <checksumPolicy>fail</checksumPolicy>
  </snapshots>
</repository></repositories>
</profile>

At the end of the file, add following tags:

    
<activeProfiles>
    <activeProfile>FirstProjectID</activeProfile>
    <activeProfile>SecondProjectID</activeProfile>
 </activeProfiles>

Now, on compiling, use the option -P to hint which project/profile you want to use:
maven clean install -PFirstProjectID