public static void setIsSlowStart(String millis) {
    CacheClientProxy.isSlowStartForTesting = true;
    System.setProperty("slowStartTimeForTesting", millis);
  }
Set the boolean to make the dispatcher thread pause <code>millis</code> milliseconds.
geode-dunit/src/main/java/org/apache/geode/internal/cache/tier/sockets/ConflationDistributedTestHelper.java