Calendar end date will change to a far future time if invalid date given

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X EE, Master
• Fix Version/s: 7.1.X, Master
• Component/s: Calendar
• Labels:
  • QA-AUTOMATION
  • backend_test
  • fw_test_integration
  • fw_test_poshi
  • fw_test_unit
  • smashing_june17
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/50036

Steps to reproduce:

1. Add a calendar portlet to the page.
2. Click Add event.
3. Under the Ends, enter "9999".
4. Click publish.

Expected result:
You cannot publish this event because the end date is not correct.

Actual result:
The event is published, the ends date change to strange date.