The first FreeMarker Engine entry in the list cannot be removed by a user interface control

Issue

• FreeMarker Engine interface has 2 variables: 'Restricted classes' and 'Restricted variables'.
  Open user interface: Control Panel > System Settings> Template Engines > FreeMarker Engine (in DXP 7.4).
  • There is no UI control to remove the first item in the list. Unlike item number 2 and higher,
    the only way to remove the first item is to make it empty using [Backspace] to delete its value.
• However, the side effect is that users end up with the value of 'Restricted classes' as:
  [, java.lang.ClassLoader, java.lang.Thread]
  where the first value is empty instead of the more reasonable value of:
  [java.lang.ClassLoader, java.lang.Thread]
  • The implementation of this UI is incomplete.

Environment

• Liferay DXP 7.1
• Liferay DXP 7.2
• Liferay DXP 7.3
• Liferay DXP 7.4

Resolution

• The incomplete UI of the FreeMarker Engine is a known DXP bug that is being addressed by LPS-81539.

Additional Information

• If the hotfix is required for this issue, please create a support ticket requesting the hotfix by attaching the patch details.
• Installing Fix Packs and Hotfixes on Liferay DXP will guide to installation of the hotfix in the respective environment.