@Override
  protected void verifySessionIsRemoved(String key) throws IOException, URISyntaxException {
    serverVM.invoke("verify session is removed", () -> {
      final InternalCache cache = ClusterStartupRule.getCache();
      Region region = cache.getRegion("gemfire_modules_sessions");
      await("for region to be empty").untilAsserted(() -> assertEquals(0, region.size()));
    });
    super.verifySessionIsRemoved(key);
  }
Test that we don't leave native sessions in the container, wasting memory
geode-assembly/src/distributedTest/java/org/apache/geode/session/tests/GenericAppServerClientServerTest.java