Validate that no unknown attributes are used according to tablibs ----------------------------------------------------------------- Key: JBIDE-8098 URL: https://issues.jboss.org/browse/JBIDE-8098 Project: Tools (JBoss Tools) Issue Type: Feature Request Components: jsf Reporter: Lukáš Fryč Assignee: Alexey Kazakov Fix For: LATER Currently, when you type nonexistent attribute, you are lost in the battle trying to find what's wrong. Try this: <h:commandButton id="commandButton" value="Submit" > <a4j:ajax onComplete="alert('completed')" /> </h:commandButton> Neither JSF-RI nor the IDE warn you that you did a mistake and that you should use "oncomplete" instead to show the alert window on completion. <h:commandButton id="commandButton" value="Submit" > <a4j:ajax oncomplete="alert('completed')" /> </h:commandButton> I propose to check this mistakes on level of IDE and trigger warnings where the unknown attributes is used to give user feedback .