Allow custom Form fields be rendered

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, Master
• Fix Version/s: 7.2.10 DXP FP3, 7.2.X, 7.2.1 CE GA2, 7.3.10 DXP GA1, Master
• Component/s: Forms
• Labels:
  • ee-ts
  • liferay-fixpack-dxp-3-7210
• Branch Version/s:
  7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 5
• Sprint: Forms_7.3_9
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/79432

Steps to reproduce:

Note: the following steps are only applicable to 7.2.x, although the fix for this issue needs to be merged on master too in order to backport the fix to 7.2.x.

1. Startup portal.
2. Deploy the custom form field Slider, pasting the attached file to [LIFERAY_HOME]/osgi/modules.
3. Check if the custom Form field was successfully deployed on portal looking for the message STARTED in Tomcat's log.
4. Go to Content > Forms and hit the plus button to create a new form.

Expected result:
The Form Builder is perfectly loaded and the custom form field (Slider) is available on the sidebar.

Actual result:
The Form Builder isn't loaded and no actions can be performed to create a form.