Results 5 issues of TIm

### Questions httpclient sets `connecttimeout`, when the connection fails (possibly due to network jitter or upstream performance issues), the duration of connect failed callback may be less than the `connecttimeout`....

bug

Motivation: https://github.com/mysql/mysql-connector-j/blob/release/8.x/src/main/user-impl/java/com/mysql/cj/jdbc/result/ResultSetImpl.java#L1153 Explain here the context, and why you're making that change, what is the problem you're trying to solve. Conformance: You should have signed the Eclipse Contributor Agreement as...

**Steps to reproduce** deps: vertx-web 3.9.4 ```java public class ServerVerticle extends AbstractVerticle { @Override public void start() { Router router = Router.router(vertx); router.get("/hello").handler(routingContext -> { routingContext.response().end(new JsonObject().put("message", "Hello, World!").encode()); });...

bug :lady_beetle:
good first issue :+1: