@Override
  public void before() throws Exception {
    Method method = TemporaryFolder.class.getDeclaredMethod(BEFORE);
    method.setAccessible(true);
    method.invoke(temporaryFolder);

    invoker().invokeInEveryVMAndController(this::invokeBefore);
  }
Used to generate a cache.xml. Basically just a {@code CacheCreation} with a few more methods
implemented.
geode-dunit/src/main/java/org/apache/geode/test/dunit/rules/CacheXmlRule.java