@Override
      public void run2() throws CacheException {
        LogWriterUtils.getLogWriter().info("### Create Cache Server. ###");

        // Create region with Global scope
        AttributesFactory factory1 = new AttributesFactory();
        factory1.setScope(Scope.GLOBAL);
        factory1.setMirrorType(MirrorType.KEYS_VALUES);
        createRegion(regions[0], factory1.createRegionAttributes());

        // Create region with non Global, distributed_ack scope
        AttributesFactory factory2 = new AttributesFactory();
        factory2.setScope(Scope.DISTRIBUTED_NO_ACK);
        factory2.setMirrorType(MirrorType.KEYS_VALUES);
        createRegion(regions[1], factory2.createRegionAttributes());

        Wait.pause(2000);

        try {
          startBridgeServer(port, true);
        }

        catch (Exception ex) {
          Assert.fail("While starting CacheServer", ex);
        }
        Wait.pause(2000);

      }
Tests execution of queries with NULL in where clause like where ID = NULL etc.
geode-cq/src/distributedTest/java/org/apache/geode/cache/query/cq/dunit/CqQueryUsingPoolDUnitTest.java