[Java] [vertx] Allow PoolOptions configuration when vertx 5

[RickyRister]

Closes #23828

When useVertx5 is enabled, the ApiClient will have an additional poolConfig field. That field is for storing the json that will eventually be mapped to the PoolOptions that is passed into the WebClient factory method alongside the WebClientOptions.

We still generate a ApiClient constructor with two params (which will just forward to the main constructor, passing an empty json for the poolConfig) to maintain backwards compatibility.

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---

Summary by cubic

Adds configurable connection pool support for Vert.x 5 by introducing a poolConfig JSON in ApiClient and passing it to WebClient.create as PoolOptions. Closes #23828.

• New Features
  • When useVertx5 is enabled, ApiClient includes a poolConfig field used to build PoolOptions.
  • Added ApiClient(Vertx, JsonObject, JsonObject); the existing 2-arg constructor forwards with an empty JSON to keep compatibility.
  • WebClient is now created with both WebClientOptions and PoolOptions derived from poolConfig.

^{Written for commit bc890da. Summary will update on new commits. Review in cubic}

[RickyRister]

@bbdouglas (2017/07) @sreeshas (2017/08) @jfiala (2017/08) @lukoyanov (2017/09) @cbornet (2017/09) @jeff9finger (2018/01) @karismann (2019/03) @Zomzog (2019/04) @lwlee2608 (2019/10) @martin-mfg (2023/08)

[cubic-dev-ai]

1 issue found across 3 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="samples/client/petstore/java/vertx5-supportVertxFuture/src/main/java/org/openapitools/client/ApiClient.java">

<violation number="1" location="samples/client/petstore/java/vertx5-supportVertxFuture/src/main/java/org/openapitools/client/ApiClient.java:661">
P2: Changing the protected `buildWebClient` hook from 2 args to 3 args breaks downstream overrides and can silently drop custom WebClient configuration.</violation>
</file>

<sub>Reply with feedback, questions, or to request a fix.

Re-trigger cubic</sub>

[cubic-dev-ai]

P2: Changing the protected buildWebClient hook from 2 args to 3 args breaks downstream overrides and can silently drop custom WebClient configuration.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At samples/client/petstore/java/vertx5-supportVertxFuture/src/main/java/org/openapitools/client/ApiClient.java, line 661:

<comment>Changing the protected `buildWebClient` hook from 2 args to 3 args breaks downstream overrides and can silently drop custom WebClient configuration.</comment>

<file context>
@@ -650,13 +658,13 @@ protected <T> Handler<AsyncResult<HttpResponse<Buffer>>> buildResponseHandler(Ty
      * @return WebClient
      */
-    protected WebClient buildWebClient(Vertx vertx, JsonObject config) {
+    protected WebClient buildWebClient(Vertx vertx, JsonObject config, JsonObject poolConfig) {
 
         if (!config.containsKey("userAgent")) {
</file context>

[wing328]

thanks for the PR

cc @sjw2547 who added vertx 5 support