private static String relocateFile(final File homeDir, File filePath) {
      final String plainFileName = filePath.getName();

      return Storage.toPath(new File(homeDir, plainFileName));
    }
Strip the directories from the configured filePath, replace them with homeDir, this way relocating
the files

@param homeDir
@param filePath absolute or relative file path
@return the absolute storage path of the relocated file
gremlin-server/src/test/java/org/apache/tinkerpop/gremlin/server/ServerTestHelper.java