code: public void wipeBundle (boolean deleteJar)
      {
          // clear out our cache directory
          if (_cache != null) {
              FileUtil.recursiveClean(_cache);
          }
  
          // delete our unpack stamp file
          if (_unpacked != null) {
              _unpacked.delete();
          }
  
          // clear out any .jarv file that Getdown might be maintaining so
          // that we ensure that it is revalidated
          File vfile = new File(FileUtil.resuffix(_source, ".jar", ".jarv"));
          if (vfile.exists() && !vfile.delete()) {
              log.warning("Failed to delete vfile", "file", vfile);
          }
  
          // close and delete our source jar file
          if (deleteJar && _source != null) {
              closeJar();
              if (!_source.delete()) {
                  log.warning("Failed to delete source",
                      "source", _source, "exists", _source.exists());
              }
          }
      }
docs: Clears out everything associated with this resource bundle in the hopes that we can
  download it afresh and everything will work the next time around.