OkHttpServer defaults to using ipv6 addresses, but during Google CTS testing, system applications are not allowed to use ipv6, resulting in CTS being unable to pass

[SJLBenjamin]

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GRPC create HttpServer:

public final class OkHttpServerProvider extends ServerProvider {

@Override protected NewServerBuilderResult newServerBuilderForPort(int port, ServerCredentials creds) {

return NewServerBuilderResult.serverBuilder(
...
    //todo  defaults to using an ipv6 address
    new OkHttpServerBuilder(new InetSocketAddress(port), result.factory));

} }

CTS Test: java.lang.AssertionError: on-device tests failed: android.appsecurity.cts.listeningports.ListeningPortsTest#testNoAccessibleListeningPorts: android.appsecurity.cts.listeningports.ListeningPortsTest$ListeningPortsAssertionError: Found port listening on addr=::, port=55231, UID=1000 [....] at android.appsecurity.cts.listeningports.ListeningPortsTest.testNoAccessibleListeningPorts(ListeningPortsTest.java:170)

at android.appsecurity.cts.Utils.runDeviceTests(Utils.java:129) at android.appsecurity.cts.Utils.runDeviceTests(Utils.java:75) at android.appsecurity.cts.Utils.runDeviceTests(Utils.java:63) at android.appsecurity.cts.ListeningPortsTest.assertNoAccessibleListeningPorts(ListeningPortsTest.java:225) at android.appsecurity.cts.ListeningPortsTest.testNoRemotelyAccessibleListeningTcp6Ports(ListeningPortsTest.java:101)

Please provide a method of using only IPV4 as the server