Google pubsub component broken in 3.2.0 ?

[Jean-Pierre Matsumoto]

Hi all

Previously I used Camel 3.0.0 for my mixture of google-pubsub and
google-mail routes. I've tried to update to Camel 3.2.0 but pubsub part is
not working, with no error message.

I've traced with debugger. I think the issue is with bad version of Guava
library. Anyway, here is a simple route to reproduce:

@Component
public class SimplePubsubRouteBuilder extends RouteBuilder {
  @Override
  public void configure() throws Exception {
    from("google-pubsub://project-id:subs-name")
      .to("log:myLog?showHeaders=true");
  }
}

Result with Camel 3.2.0: nothing happens, no errors even with DEBUG log
level.

Result with Camel 3.1.0: error 404 as expected since Pubsub subscription
path is invalid.

My platform: macOS 10.15.4 with openjdk 11.0.6 2020-01-14 (but I've been
able to reproduce on Ubuntu 16, same jdk).

I've tried to fix the issue myself with no success.

Let me know if I can help more.

Thanks
Jean-Pierre