[WW-4360] Fix potential NullPointerExceptions in xwork-core

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.3.20
• Assignee: Unassigned
• Reporter: Joseph Walton
• Created: 11/Jun/14 15:03
• Updated: 13/Jan/15 11:58
• Resolved: 28/Jul/14 19:35

Description

Eclipse's static analysis of nulls identifies a number of spots in xwork-core where a NullPointerException can occur. This change fixes them either to rearrange things so they can't happen or to throw a more specific exception.