protected void after(Description description) throws Throwable {
    // do nothing
  }
Override to tear down your specific external resource. Note: ExternalResource after
does not include {@code throws Throwable}.

@param description A Description of the test implemented in base
@throws Throwable if teardown fails
geode-junit/src/main/java/org/apache/geode/test/junit/rules/DescribedExternalResource.java