DubboClientRequest extends RpcClientRequest implements DubboRequest { @Override protected void propagationField(String keyName, String value) { attachments.put(keyName, value); } DubboClientRequest(Invoker<?> invoker, Invocation invocation, Map<String, String> attachments); @Override Invoker<?> invoker(); @Override Invocation invocation(); @Override Invocation unwrap(); @Override String method(); @Override String service(); @Override boolean parseRemoteIpAndPort(Span span);  }
@Test public void propagationField() { request.propagationField("b3", "d"); assertThat(attachments).containsEntry("b3", "d"); }