[STR-3070] Postback forms cause NPE with classic RequestProcessor

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.3.5, 1.3.8, 1.3.9
• Fix Version/s: 1.3.10, 1.4.0
• Component/s: Core
• Assignee: Paul Benedict
• Reporter: Paul Benedict
• Created: 16/Jul/07 04:03
• Updated: 05/Jun/08 06:18
• Resolved: 17/Jul/07 03:27

Description

I was unwittingly using the classic RequestProcessor when attempting to use postback forms. Unfortunately, I got a NPE:

java.lang.NullPointerException
org.apache.struts.taglib.TagUtils.getActionMappingName(TagUtils.java:583)
org.apache.struts.taglib.html.FormTag.lookup(FormTag.java:834)
org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:467)

I traced the problem back to a missing step in the classic RP. It does not set the ORIGINAL_URI key like the ComposableRequestProcessor. However, FormTag should explain this condition when a postback form is used but the key is absent.