Maven/Gradle way to calculate the total size of a dependency with all its transitive dependencies included

Question

I would like to be able to perform an analysis on each of my project POMs to determine how many bytes each direct dependency introduces to the resulting package based on the sum

Answer 1

I keep the a small pom.xml template on my workstation to identify heavy-weight dependencies.

Assuming you want to see the weight of org.eclipse.jetty:jetty-client with all of its transitives create this in a new folder.

  4.0.0
  not-used
  fat
  standalone

  
    
      org.eclipse.jetty
      jetty-client
      LATEST
    
  
  
    
      
        maven-shade-plugin
        
          
           package
           
              shade
           
          
        
      
    
  

Then cd to the folder and run mvn package and check the size of the generated fat jar. On Unix-like systems you can use du -h target/fat-standalone.jar for that.

In order to test another maven artifact just change groupId:artifactId in the above template.