docs: @Nonnull
      public static FileSet createFileSet(@Nonnull File baseDir, @Nonnull String includes, @CheckForNull String excludes) {
          FileSet fs = new FileSet();
          fs.setDir(baseDir);
          fs.setProject(new Project());
  
          StringTokenizer tokens;
  
          tokens = new StringTokenizer(includes,",");
          while(tokens.hasMoreTokens()) {
              String token = tokens.nextToken().trim();
              fs.createInclude().setName(token);
          }
          if(excludes!=null) {
              tokens = new StringTokenizer(excludes,",");
              while(tokens.hasMoreTokens()) {
                  String token = tokens.nextToken().trim();
                  fs.createExclude().setName(token);
              }
          }
          return fs;
      }