The faces-config.xml files that we include are not properly valid with some IDEs and app servers. The following file:

/icefaces-2.0.0-alpha2/core/src/main/resources/META-INF/faces-config.xml

Has this element:

    <name>ICEfaces core</name>

And this file:

/icefaces-2.0.0-alpha2/compat/core/build.javascript.xml

References the name like this:

    <ordering>
        <before>
            <name>ICEfaces core</name>
        </before>
    </ordering>

Eclipse indicates that the XML Schema for javaee:java-identifierType doesn't permit spaces. Also:

<render-kit>
<render-kit-class>com.icesoft.faces.component.CompatDOMRenderKit</render-kit-class>
</render-kit>

produces the following error for a user with Eclipse:

cvc-complex-type.2.4.a: Invalid content was found starting with element 'render-kit'. One of '{"http://
java.sun.com/xml/ns/javaee":action-listener, "http://java.sun.com/xml/ns/javaee":default-render-kit-id, "http://
java.sun.com/xml/ns/javaee":message-bundle, "http://java.sun.com/xml/ns/javaee":navigation-handler, "http://
java.sun.com/xml/ns/javaee":view-handler, "http://java.sun.com/xml/ns/javaee":state-manager, "http://
java.sun.com/xml/ns/javaee":el-resolver, "http://java.sun.com/xml/ns/javaee":property-resolver, "http://
java.sun.com/xml/ns/javaee":variable-resolver, "http://java.sun.com/xml/ns/javaee":resource-handler, "http://
java.sun.com/xml/ns/javaee":system-event-listener, "http://java.sun.com/xml/ns/javaee":locale-config, "http://
java.sun.com/xml/ns/javaee":resource-bundle, "http://java.sun.com/xml/ns/javaee":application-extension,
"http://java.sun.com/xml/ns/javaee":default-validators}' is expected.