void setCCF(final int[] ports, ClientCacheFactory ccf) {
    for (int port : ports) {
      ccf.addPoolServer("localhost", port);
    }
    ccf.setPoolSubscriptionEnabled(false);
    ccf.set(LOG_LEVEL, getDUnitLogLevel());
  }
Tests the basic client-server transaction functionality
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ClientServerTransactionDUnitTest.java