code: @Override
      public int compareTo(final SortableLocation that) {
  
          // Check sanity
          Validate.notNull(that, "that");
          if (this == that) {
              return 0;
          }
  
          // Delegate
          return this.toString().compareTo(that.toString());
      }
docs: <p>Compares the string representations of this PackageLocation and the supplied SortableLocation.</p>
  {@inheritDoc}