[OFBIZ-7690] Enforce noninstantiability to PreferenceWorker class

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Trunk
• Fix Version/s: 16.11.01
• Component/s: framework
• Sprint: Community Day 2 - 2016, OFBiz Community Day (May 2020)
• Assignee: Arun Patidar
• Reporter: Rishi Solanki
• Created: 01/Jul/16 08:08
• Updated: 04/Jul/16 14:24
• Resolved: 04/Jul/16 14:24

Description

• Make class as final.
• Add a private constructor.
• Make the following public static final variables as private

      public static final String ADMIN_PERMISSION = "USERPREF_ADMIN";
      public static final String LOGINID_PARAMETER_NAME = "userPrefLoginId";
      public static final String DEFAULT_UID = "_NA_";
  

No variables needs to be change for this class.