[richfaces-issues] [JBoss JIRA] (RF-12060) element is null message when closing tab from an event click

element is null message when closing tab from an event click ------------------------------------------------------------ Key: RF-12060 URL: https://issues.jboss.org/browse/RF-12060 Project: RichFaces Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 4.2.0.Final Environment: Websphere 8.0.0.2 - RAD 8 - JSF Mojorra 2.1.6 - Spring 3.0.6 Final - Firefox 10.0.2 - Windows 7 (6.1 sp1) - AspectJ 1.6.12 / AJDT - RichFaces 4.2.0 Final - Hibernate Validator 4.2.0 Final Reporter: Jean ANDRE Fix For: 4.Future Attachments: NestedWeb_RF-12060.zip There is a link to RF-11950. We got the message "element is null" when we send a click event for closing a tab. To retrieve the id of the close button (an image), we use the function getElementById (because of RF-11950). The click function calls a javascript function declared by a4j:jsFunction (see index.hxtml file - close task). This is the only information we have from firebug. When we close the tab directly by clicking on the close button/image, it works perfectly. *Note :* Moreover, there is also a strange behavior related to generated id on close button/image. When we specified a fix id on the h:graphicImage, the first id is correct but there is no id on other close button/image from other tabs!???. Having a fix id should trigger a duplicate ID but as the ids are not generated on other tabs, it does not. {code} <f:facet name="header"> &#160;<h:outputText value="#{msg[task.uiActivity.headerKey]}" title="#{msg[task.uiActivity.headerKey]}" /> &#160;<h:graphicImage id="closeTask" value="/images/closeButton.png" styleClass="closeButton" onclick="closeTask('#{task.id}');event.stopPropagation();" /> </f:facet> <f:subview id="#{task.id}-subview"> <ui:include src="#{task.uiActivity.xhtmlFile}" /> </f:subview> {code}