Primefaces 4.0 fails with WAS 8.5.5
The latest community version of Primefaces (4.0) doesn’t work with the JSF version that is bundled with WebSphere AS 8.5.5. There are strange errors, for example some buttons are not rendered. To solve the problem, downgrade to Primefaces 3.5 or bundle another JSF implementation with the web application. We downgraded to 3.5 – problem solved.