private Bootstrapper createBootstrapper(DeployTester tester, RpcServer rpcServer, VipStatusMode vipStatusMode) throws IOException {
        Version versionToUpgradeTo = new Version(VespaVersion.major, VespaVersion.minor, VespaVersion.micro);
        return createBootstrapper(tester,rpcServer, vipStatusMode, createVersionState(tester.curator(), versionToUpgradeTo));
    }
@author Ulf Lilleengen
@author Harald Musum
configserver/src/test/java/com/yahoo/vespa/config/server/ConfigServerBootstrapTest.java