[JS2-664] getPreference returns null with a default value of ""

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.2.0
• Component/s: Portlet Entities and Preferences
• Assignee: David Sean Taylor
• Reporter: David Sean Taylor
• Created: 17/Mar/07 00:48
• Updated: 25/Sep/08 22:07
• Resolved: 25/Sep/08 22:07

Description

The User Browser was getting a NPE exception since the code expected "" to be returned from getPreferences().getValue with a default value provided:

String roleFilter = request.getPreferences().getValue("FilterByRole", "");
if (roleFilter == null)
roleFilter = "";

See commit:
http://svn.apache.org/viewvc?view=rev&revision=519196

When a default value of "" is provided, it would be expected to get back "", not NULL
However, NULL is being returned at times
It seems that this only occurs with an Oracle database backend