As a developer I need a way to provider a drop down in System Settings to select from different implementations for an interface

• Type: Task
• Status: Closed
• Priority: Trivial
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: 7.0.X EE, Master
• Component/s: Portal Configuration > System Settings
• Labels:
  • liferay-saml-2.0-provider-3.1.0
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal-ee/pull/17894

before 7.0 the usual approach was to have a property in portal/portlet.properties with the name of an implementation class.
This approach is gone now and in system settings we did not have a proper way to create a dropdown with the existing choices.