private static List<File> createPossibleHomeDirList() {
    List<File> homeDirCheckList = new ArrayList<File>(4);

    // include codeSource dir in check list
    CodeSource lib = OCSSWRuntimeConfig.class.getProtectionDomain().getCodeSource();
    if (lib != null) {
      URL libUrl = lib.getLocation();
      if (libUrl.getProtocol().equals("file")) {
        String libPath = libUrl.getPath();
        File libParentDir = new File(libPath).getParentFile();
        if (libParentDir != null) {
          // include one above libParentDir
          if (libParentDir.getParentFile() != null) {
            homeDirCheckList.add(libParentDir.getParentFile());
          }
          // include libParentDir
          homeDirCheckList.add(libParentDir);
        }
      }
    }
    // include CWD in check list
    homeDirCheckList.add(new File(".").getAbsoluteFile());
    // include one above CWD in check list
    homeDirCheckList.add(new File("src/test").getAbsoluteFile());
    return homeDirCheckList;
  }