[WW-3551] Retrieving property Error when rendering submit of type image in debug mode

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.1
• Fix Version/s: 2.2.3
• Component/s: Other

Environment

JDK 1.5.0_22
JONAS 4.10.3

• Assignee: Maurizio Cucchiara
• Reporter: olivier sagit
• Created: 28/Dec/10 15:23
• Updated: 10/Jul/13 05:01
• Resolved: 05/Jan/11 04:57

Description

Problem:
There is a problem with the <s:submit type="image" src=""> taglib in forms.
While rendering it generates a java.lang.NullPointerException (see attached log.txt for stacktrace) in debug mode.

Test:
To test this behavior you can download the struts2 samples 2.2.1 and modify the form submit tag in struts2-showcase-2.2.1/conversion/enterPersonsInfo.jsp to be a submit of type image.

Diagnosis:
This trace is produces by the presence of the freemarker property <@s.property value="parameters.body"/> in template/simple/submit.ftl.

Solution:
As seen with Maurizio Cucchiara on Struts (Users/Dev) Mailing list, this body parameter would seem unnecessary, so is a good candidate for removal, though it don't cause any side effect (except for the exception in debug mode).

Issue Links

• relates to: WW-4135 It is showing some debug text like java.lang.Object@3fa472bf next to the button generated by s:submit tag