OkHttpChannelProvider extends ManagedChannelProvider { @Override public OkHttpChannelBuilder builderForAddress(String name, int port) { return OkHttpChannelBuilder.forAddress(name, port); }  @Override boolean isAvailable(); @Override int priority(); @Override OkHttpChannelBuilder builderForAddress(String name, int port); @Override OkHttpChannelBuilder builderForTarget(String target);  }
@Test public void builderIsAOkHttpBuilder() { assertSame(OkHttpChannelBuilder.class, provider.builderForAddress("localhost", 443).getClass()); }