docs: protected void registerSourceRoots()
      {
          if ( sourceRoot != null )
          {
              getLog().info( "Registering compile source root " + sourceRoot );
              project.addCompileSourceRoot( sourceRoot.toString() );
          }
  
          if ( testSourceRoot != null )
          {
              getLog().info( "Registering compile test source root " + testSourceRoot );
              project.addTestCompileSourceRoot( testSourceRoot.toString() );
          }
      }