private void createLonerDS() {
    disconnectFromDS();
    InternalDistributedSystem ds = getLonerSystem();
    assertThat(ds.getDistributionManager().getOtherDistributionManagerIds()).isEmpty();
  }
Stops the cache server that serves up the given cache.

@since GemFire 4.0
geode-core/src/distributedTest/java/org/apache/geode/cache/ConnectionPoolDUnitTest.java