code: public static String getClasspathFromPaths(File... paths) {
      Preconditions.checkNotNull(paths);
  
      final StringBuilder classpath = new StringBuilder();
      boolean isFirst = true;
      for (File path : paths) {
        if (!isFirst) {
          classpath.append(":");
        }
        final String subClasspath = getClasspathFromPath(path);
        if (subClasspath.length() > 0) {
          classpath.append(subClasspath);
          isFirst = false;
        }
      }
  
      return classpath.toString();
    }
docs: *
  List and generate classpath string from paths.
  
  Note: This is currently unused, and will be brought in to use with custom Gobblin AMI
  
  @param paths Paths to list
  @return Classpath string