Android Question Can I use okhttp's httpdns function?

public class DnsFactory {
    public static Dns getDns() {
        switch (Environment.getType()) {
            case Environment.TYPE_TEST:
                return new DevDns();
            case Environment.TYPE_PRE_RELEASE:
                return new PreReleaseDns();
            case Environment.TYPE_ONLINE:
            default:
                return Dns.SYSTEM;
        }
    }

    // DevDns
    private static class DevDns implements Dns {
        @Override
        public List<InetAddress> lookup(String hostname) throws UnknownHostException {
            return SYSTEM.lookup(hostname);
        }
    }

    // PreReleaseDns
    private static class PreReleaseDns implements Dns {
        @Override
        public List<InetAddress> lookup(String hostname) throws UnknownHostException {
            // hostname ip white list，set Host to IP manually
            if ("xxxx".equals(hostname)
                    || "xxxx".equals(hostname)
                    || "xxxx".equals(hostname)
                    || "xxxx".equals(hostname)) {
                InetAddress byAddress = InetAddress.getByAddress(hostname, new byte[]{xx,xx,xx,xx});
                return Collections.singletonList(byAddress);
            } else {
                return SYSTEM.lookup(hostname);
            }
        }
    }
}

OkHttpClient.Builder builder = new OkHttpClient.Builder()
                .connectTimeout(20, TimeUnit.SECONDS)
                .readTimeout(30, TimeUnit.SECONDS)
                .writeTimeout(30, TimeUnit.SECONDS)
                builder.dns(DnsFactory.getDns());

public OkHttpClient.Builder sharedInit(String EventName) {
        okhttp3.OkHttpClient.Builder builder = new okhttp3.OkHttpClient.Builder();
        this.eventName = EventName.toLowerCase(BA.cul);
        setTimeout(builder, 30000);
        CookieManager cm = new CookieManager();
        cm.setCookiePolicy(CookiePolicy.ACCEPT_ALL);
        builder.cookieJar(new JavaNetCookieJar(cm));
        builder.dns(MyDns);
        return builder;
    }
private static class MyDns implements Dns {
        @Override
        public List<InetAddress> lookup(String hostname) throws UnknownHostException {
            if ("cdn.examplesite.com".equals(hostname)) {
                InetAddress byAddress = InetAddress.getByAddress(hostname, new byte[]{123,123,123,123});
                return Collections.singletonList(byAddress);
            } else {
                return SYSTEM.lookup(hostname);
            }
        }
    }

Starting step: Compiling Java code.
javac 1.8.0_40
D:\B4A_Projects\SimpleLibraryCompiler\Libs_OkHttp\src\anywheresoftware\b4h\okhttp\OkHttpClientWrapper.java:138: error: cannot find symbol
        builder.dns(MyDns);
                    ^
  symbol:   variable MyDns
  location: class OkHttpClientWrapper
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
1 error

Sub Class_Globals
    Private hosts As Map
    Private sb As StringBuilder
End Sub

'Initializes the object. You can add parameters to this method if needed.
Public Sub Initialize(hostsMap As Map)
    hosts = hostsMap
End Sub

public Sub fixURL(url As String) As String
    Log($"url in: ${url}"$)
    Dim startIndex As Int = url.IndexOf("//")
    If startIndex = -1 Then
        startIndex = 0
    Else
        startIndex = startIndex + 2
    End If
    
    Dim stopIndex As Int = url.Length
    
    Dim slashIndex As Int = url.IndexOf2("/", startIndex)
    If slashIndex <> -1 And slashIndex < stopIndex Then stopIndex = slashIndex
    
    Dim colonIndex As Int = url.IndexOf2(":", startIndex)
    If colonIndex <> -1 And colonIndex < stopIndex Then stopIndex = colonIndex
    
    Dim questionIndex As Int = url.IndexOf("?")
    If questionIndex <> -1 And questionIndex < stopIndex Then stopIndex = questionIndex
    
    Dim hostname As String = url.SubString2(startIndex,stopIndex)
    
    Dim newHostname As String = hosts.GetDefault(hostname, "")
    
    If newHostname <> "" Then
        sb.Initialize
        sb.Append(url.SubString2(0, startIndex))
        sb.Append(newHostname)
        sb.Append(url.SubString(stopIndex))
        Return sb.ToString
    Else
        Return url
    End If
End Sub

    Dim hosts As Map
    Dim rh As ReplaceHostname
    hosts = CreateMap("www.youtube.com": "123.123.123.123", "youtube.com": "123.123.123.123")
    rh.Initialize(hosts)

    Log(rh.fixURL("http://www.blog.classroom.me.uk/index.php"))
    Log(rh.fixURL("http://www.youtube.com/watch?v=ClkQA2Lb_iE"))
    Log(rh.fixURL("https://www.youtube.com/watch?v=ClkQA2Lb_iE"))
    Log(rh.fixURL("www.youtube.com/watch?v=ClkQA2Lb_iE"))
    Log(rh.fixURL("ftps://ftp.websitename.com/dir/file.txt"))
    Log(rh.fixURL("websitename.com:1234/dir/file.txt"))
    Log(rh.fixURL("ftps://websitename.com:1234/dir/file.txt"))
    Log(rh.fixURL("example.com?param=value"))
    Log(rh.fixURL("https://facebook.github.io/jest/"))
    Log(rh.fixURL("//youtube.com/watch?v=ClkQA2Lb_iE"))
    Log(rh.fixURL("http://localhost:4200/watch?v=ClkQA2Lb_iE"))
    Log(rh.fixURL("http://localhost"))

url in: http://www.blog.classroom.me.uk/index.php
http://www.blog.classroom.me.uk/index.php
url in: http://www.youtube.com/watch?v=ClkQA2Lb_iE
http://123.123.123.123/watch?v=ClkQA2Lb_iE
url in: https://www.youtube.com/watch?v=ClkQA2Lb_iE
https://123.123.123.123/watch?v=ClkQA2Lb_iE
url in: www.youtube.com/watch?v=ClkQA2Lb_iE
123.123.123.123/watch?v=ClkQA2Lb_iE
url in: ftps://ftp.websitename.com/dir/file.txt
ftps://ftp.websitename.com/dir/file.txt
url in: websitename.com:1234/dir/file.txt
websitename.com:1234/dir/file.txt
url in: ftps://websitename.com:1234/dir/file.txt
ftps://websitename.com:1234/dir/file.txt
url in: example.com?param=value
example.com?param=value
url in: https://facebook.github.io/jest/
https://facebook.github.io/jest/
url in: //youtube.com/watch?v=ClkQA2Lb_iE
//123.123.123.123/watch?v=ClkQA2Lb_iE
url in: http://localhost:4200/watch?v=ClkQA2Lb_iE
http://localhost:4200/watch?v=ClkQA2Lb_iE
url in: http://localhost
http://localhost