Depending on the exception thrown in a fragment renderer, the page where it's added breaks

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.2.X, Master
• Component/s: WCM > Page Editor
• Labels: None
• Branch Version/s:
  7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/pavel-savinov/liferay-portal/pull/436

Steps to reproduce:

1. Implement a fragment renderer that throws an exception in the render method
2. Deploy the fragment renderer
3. Add the fragment to a content page
4. Refresh the view

Expected result: the fragment doesn't display and an error message is shown without breaking the page

Actual result: The page breaks and there's no way to revert this