public static void startServer() throws IOException {
    Cache c = CacheFactory.getAnyInstance();
    assertEquals("More than one BridgeServer", 1, c.getCacheServers().size());
    CacheServerImpl bs = (CacheServerImpl) c.getCacheServers().iterator().next();
    assertNotNull(bs);
    bs.start();
  }
Given a server port (PORT1, PORT2, or PORT3) return its vm.

@since GemFire 5.7
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/HAInterestTestCase.java