@Override
    public boolean equals(Object o) {
      TestObject other = (TestObject) o;
      return (id == other.id) && (_ticker.equals(other._ticker));
    }
Starts a cache server on the given port, using the given deserializeValues and
notifyBySubscription to serve up the given region.
geode-core/src/distributedTest/java/org/apache/geode/cache/query/dunit/PDXQueryTestBase.java