How can I use a Maven project as a dependency to another Maven project?

Question

I'm new to Maven, therefore, sorry in advance if my question is too general. I have a Maven project, call it projectA , which resides in my company's Mercurial repository (let's call it https://hg.mycompany.com/niceprojects/ ). Recently, I built a separate Maven project, call it projectB in the same repository. I now want to use in projectB some classes that I have in projectA . The directory structure in the repository is currently:

-----niceprojects
       |
       |__projectA
       |     |__pom.xml
       |
       |__projectB
             |__pom.xml

What is a neat way of doing this? I would like to avoid manually building projectA , then adding its jars in projectB . I would also like to keep the same directory structure. Step-by-step instructions would be greatly appreciated. Many thanks!

Answer 1

A general advice when using Maven is to use a Maven Repository Manager such as Nexus.

In this case Nexus has the addtional benefit that it can host your jars.

So I advice to do the following:

• Configure a CI (eg Jenkins) job to build projectA and deploy the JAR to your Nexus instance
• Declare projectA as a dependency in projectB

When building projectB, it can download the projectA JAR from your Nexus instance without you having to build projectA yourself.