[TOMAHAWK-414] <t:messages> NPEs if the 'for' attribute on <h:outputLabel> is missing

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.1.2-SNAPSHOT
• Fix Version/s: 1.1.3
• Component/s: Message(s)
• Environment: Doesn't matter.
• Assignee: Mike Kienenberger
• Reporter: Val Blant
• Created: 05/May/06 00:57
• Updated: 12/Jun/06 23:57
• Resolved: 06/May/06 00:39

Description

If you use the <t:messages> tag in conjunction with <h:outputLabel> without specifying the 'for' attribute, the page will not render and an exception will be thrown:
java.lang.NullPointerException: expr
at javax.faces.component.UIComponentBase.findComponent(UIComponentBase.java:210)
at org.apache.myfaces.renderkit.html.ext.HtmlMessageRenderer.createOutputLabelMap(HtmlMessageRenderer.java:200)

This could be easily avoided by declaring the 'for' attribute as required in the TLD.