 
        
          Click 
           Window > Open Perspective
          > Other... > Java to change to the Java
          perspective.
        
          Click 
           File > New >
          Other... > Java Project to open the New Java
          Project wizard.
        
Type "Product1" in the Project name field. Click Next.
           
        
On the next page, Select "Product1" source folder.
          Click Link additional source link in
          Details pane or button  in view bar.
        
           
        
          In Link Source click Browse.... and
          choose the D:\Product1\JavaSourceFiles directory.
        
Type "src" in the Folder name field.
           
        
Click Finish to validate and close the dialog.
          Expand the "src" source folder. Select the empty package "tests" and
          set it as source folder using either Use as Source
          Folder popup-menu item or button  in
          view bar.
        
           
        
Your project source setup now looks as follows:
           
        
D:\Product1\JavaSourceFiles directory and the
      D:\Product1\JavaSourceFiles\tests directory.
        
          