Request: Browser-compatible bundle for Java/GraalVM integration #1131

Title

Request: Browser-compatible bundle for Java/GraalVM integration

Description

I'm working on a Java wrapper for the AsyncAPI parser using GraalVM's JavaScript engine. The current @asyncapi/parser package (v3.6.0) cannot be bundled for use in GraalVM because it depends on Node.js-specific APIs (fetch, Headers, etc.) that aren't available in GraalVM's JavaScript environment.

Current Situation

• The old bundle-es5.js only supports AsyncAPI 2.4.0
• The new @asyncapi/parser v3.x requires fetch API and browser globals
• When bundled with webpack, it fails with: TypeError: Cannot set property 'Headers' of undefined

Request

Could you provide or help create a browser-compatible bundle that:

1. Supports both AsyncAPI v2.x and v3.x
2. Works in environments without fetch API (or includes polyfills)
3. Can run in GraalVM's JavaScript engine
4. Doesn't depend on Node.js-specific modules

Use Case

Java applications that need to parse AsyncAPI documents without spawning Node.js processes or using native V8 bindings (which don't support macOS ARM).

Alternative Solutions Considered

• Using Playwright/Puppeteer (too heavy)
• Using J2V8 (no macOS ARM support)
• Creating custom bundle with webpack (fails due to fetch dependency)

Environment

• GraalVM JS engine via javax.script
• Target: Java 11+
• Platform: macOS ARM, Linux, Windows

Would appreciate guidance on:

1. How to properly bundle the parser for non-browser/non-Node environments
2. If there's an existing standalone bundle
3. If this use case is supported