public static void createEntriesK1andK2OnServer() {
    Region r1 = cache.getRegion(SEPARATOR + REGION_NAME);
    assertNotNull(r1);
    if (!r1.containsKey(k1)) {
      r1.create(k1, server_k1);
    }
    if (!r1.containsKey(k2)) {
      r1.create(k2, server_k2);
    }
    assertEquals(r1.getEntry(k1).getValue(), server_k1);
    assertEquals(r1.getEntry(k2).getValue(), server_k2);
  }
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