private Cache createCache(Properties props) throws Exception {
    props.setProperty(MCAST_PORT, "0");
    cache = new CacheFactory(props).create();
    if (cache == null) {
      throw new Exception("CacheFactory.create() returned null ");
    }
    return cache;
  }
Tests cacheserver ssl support added. See https://svn.gemstone.com/trac/gemfire/ticket/48995 for
details
geode-core/src/distributedTest/java/org/apache/geode/cache/client/internal/CacheServerSSLConnectionDUnitTest.java