[WW-4631] Empty <s:param name="p1" value=""/> is being supressed

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.28
• Fix Version/s: 2.5.5
• Component/s: Plugin - Tags
• Assignee: Christoph Nenning
• Reporter: Greg Lindholm
• Created: 05/May/16 20:43
• Updated: 13/Feb/17 09:52
• Resolved: 23/Sep/16 09:31

Description

I discovered a problem with the <s:param /> tag when attempting to pass an empty parameter.

<s:url var="myUrl" action='MyAction'>
<s:param name="p1" value=""/>
<s:param name="p2"></s:param>
</s:url>

I was attempting to pass an empty parameter using the "p1" syntax above and the parameter was being suppressed.

Using the "p2" syntax it works correctly, and the empty parameter is included.

The doc http://struts.apache.org/docs/param.html says that "suppressEmptyParameters" defaults to false but the p1 parameter was always suppressed even if I added suppressEmptyParameters="false".

Also the doc http://struts.apache.org/docs/param.html has an incorrect example on how to use the suppressEmptyParameters option.

<s:param name="suppressEmptyParameters" value="true"/>

Issue Links

• breaks: WW-4701 Can no longer clear parameter on a <s:url> tag.
• duplicates: WW-4628 Space character and includeParams