Use reflection to properly support Vert.x 5.x

[alzimmermsft]

Description

Fixes #45386

Use reflection to create Vert.x HttpClient to properly support Vert.x 5.x while keeping dependency on Vert.x 4.5.

While Vert.x 5.x and Vert.x 4.5 both have Vertx.createHttpClient(HttpClientOptions), there is binary incompatibility which results in an exception thrown when azure-core-http-vertx's Vert.x 4.5 version is overridden to use Vert.x 5.x. Using reflection to create the Vert.x HttpClient resolves this issue.

All SDK Contribution checklist:

• The pull request does not introduce [breaking changes]
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.

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• Title of the pull request is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• Pull request includes test coverage for the included changes.

[Copilot]

Pull Request Overview

This PR enables compatibility with both Vert.x 4.5 and 5.x by using reflection to invoke Vertx.createHttpClient(HttpClientOptions) instead of a direct call.

• Exports the com.azure.core.http.vertx package in module-info.java to allow internal implementation access.
• Introduces a static reflection-based factory (VERTX_HTTP_CLIENT_FACTORY) in VertxHttpClientBuilder.
• Replaces the direct configuredVertx.createHttpClient(...) call with the reflective factory invocation.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
sdk/core/azure-core/src/main/java/module-info.java	Added com.azure.core.http.vertx to exports in com.azure.core.implementation.
sdk/core/azure-core-http-vertx/src/main/java/com/azure/core/http/vertx/VertxHttpClientBuilder.java	Added static reflective factory for HttpClient creation and updated build() to use it.

Comments suppressed due to low confidence (1)

sdk/core/azure-core-http-vertx/src/main/java/com/azure/core/http/vertx/VertxHttpClientBuilder.java:44

• Add unit tests for the reflection-based HttpClient factory to verify both successful invocation and error paths, ensuring it works reliably under Vert.x 4.x and 5.x.

static {

[github-actions]

API Change Check

APIView identified API level changes in this PR and created the following API reviews

com.azure:azure-core

[alzimmermsft]

/check-enforcer override