code: protected static File getJarFile( File basedir, String finalName, String classifier )
      {
          if ( classifier == null )
          {
              classifier = "";
          }
          else if ( classifier.trim().length() > 0 && !classifier.startsWith( "-" ) )
          {
              classifier = "-" + classifier;
          }
  
          return new File( basedir, finalName + classifier + ".jar" );
      }
docs: <p>getJarFile.</p>
  
  @param basedir a {@link java.io.File} object.
  @param finalName a {@link java.lang.String} object.
  @param classifier a {@link java.lang.String} object.
  @return a {@link java.io.File} object.