private MemberVM addServerForGroup(int idx, String groupName) {
    int locatorPort = locator.getPort();
    return startupRule.startServerVM(idx, groupName, locatorPort);
  }
End-to-end dunits for JDBC connector
geode-connectors/src/acceptanceTest/java/org/apache/geode/connectors/jdbc/JdbcDistributedTest.java