com.sun.faces.renderkit.html_basic.CommandLinkRenderer uses RenderKitUtils.renderJsfJs() to load the jsf.js Resource. This can't work because mojarra doesn't call ExternalContext.encodeResourceUrl for it.

The commandLink works in the job-app sample though. There com.sun.faces.facelets.tag.jsf.core.AjaxHandler.installAjaxResourceIfNecessary is called first (probably because of the <f:ajax> tag). AjaxHandler uses an other way to load the resource which works in portlet environment.

This may be a mojarra bug...