JSF logs warning messages when resources are created with an unknown file extension. These messages appeared after a fix for ICE-6851 was applied:

com.sun.faces.context.ExternalContextImpl getMimeType
WARNING: JSF1091: No mime type could be found for file listen.icepush. To resolve this, add a mime-type mapping to the applications web.xml.

com.sun.faces.context.ExternalContextImpl getMimeType
WARNING: JSF1091: No mime type could be found for file create-push-id.icepush. To resolve this, add a mime-type mapping to the applications web.xml.

com.sun.faces.context.ExternalContextImpl getMimeType
WARNING: JSF1091: No mime type could be found for file notify.icepush. To resolve this, add a mime-type mapping to the applications web.xml.

com.sun.faces.context.ExternalContextImpl getMimeType
WARNING: JSF1091: No mime type could be found for file add-group-member.icepush. To resolve this, add a mime-type mapping to the applications web.xml.

com.sun.faces.context.ExternalContextImpl getMimeType
WARNING: JSF1091: No mime type could be found for file remove-group-member.icepush. To resolve this, add a mime-type mapping to the applications web.xml.

Even when the mime-type was provided by calling ResourceHandler.createResource(resourceName, libraryName, contentType) the warnings are still shown.