Detect upload exceptions in the JSON WS

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.1.1 CE GA2, 6.1.20 EE GA2
• Fix Version/s: 6.1.30 EE GA3, 6.2.0 CE M4
• Component/s: Portal Services, Portal Services > Legacy
• Labels:
  • QA-R
• Branch Version/s:
  6.1.x
• Backported to Branch:
  Committed
• Epic/Theme:
  • Quick_Win
• Story Points: 21
• Git Pull Request: https://github.com/hhuijser/liferay-portal/pull/1165

When uploading files via JSONWS (e.g. /api/jsonws/dlapp/add-file-entry) that are larger then value specified in property:

com.liferay.portal.upload.UploadServletRequestImpl.max.size

there will be exception logged, but not propagated; uploaded parameter will not be available; therefore JSONWS engine will not be able to match target service API due to missing argument.

We should instead detects this error and returns usual error JSON message.