Calling webscript without required @RequestParam causes 500 error response

[evyrosseels]

I'm submitting a

[x] bug report
[ ] feature request
[ ] question

Expected Behavior

The webscript should return an appropriate HTTP error in the 4XX range (e.g. 422) when making a request without required parameter(s).

Current Behavior

When a webscript argument annotated with @RequestParam is missing from an HTTP request, an IllegalStateException is thrown, causing Alfresco to return a 500 error response.

Steps to Reproduce

1. Create a webscript using an @RequestParam annotation
2. Make an HTTP request to the webscript without the required parameter

Your Environment

• Alfresco version used: 5.1.4.1
• DE version used: 2.0.3