@Override
    public Object processRequest(Object request) {
      if (request instanceof ClientConnectionRequest) {
        return nextConnectionResponse;
      } else {
        return nextLocatorListResponse;
      }
    }
This tests that discovery works even after one of two locators was shut down
geode-core/src/integrationTest/java/org/apache/geode/cache/client/internal/AutoConnectionSourceImplIntegrationTest.java