How do you use Maven to share source code for two projects?

Question

I have a large Java Web Application project using Maven and I need to start a new project that will share most of the same code (so I don\'t have to repeat work), but not all of

Answer 1

Create a maven project which contains all your shared code. Keep packaging of this project (in the main pom.xml) as jar. This would help make this project kind of library for your usage.

In all the projects which access the shared code, add dependency for this project according to your needs. (compile, provided).

Now package and install the shared project before you build any of the dependent projects. This will add the shared project to your local repository which can be then used by your dependent projects.

Adding sample pom.xml for shared and dependent projects.

Shared project pom.

  
  4.0.0  
    
    com.myspace.test  
    com.myspace  
    0.0.1-SNAPSHOT  
    
  com.myspace  
  shared  
  0.0.1-SNAPSHOT  
  shared-module  
  shared module which contains code shared by other modules.  

Dependent project's pom.

  
  4.0.0  
    
    com.myspace.test  
    com.myspace  
    0.0.1-SNAPSHOT  
    
  com.myspace  
  dependent-module  
  0.0.1-SNAPSHOT  
  dependent-module  
  Dependent module.  
    
      
      com.myspace  
      shared  
      0.0.1-SNAPSHOT  
      provided  
      
    

Parent project can be added optionally in case such organization is required. Hope this helps.