FaceletContext faceletContext = (FaceletContext) context.
getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY);
VariableMapper orig = faceletContext.getVariableMapper();
try
{
faceletContext.setVariableMapper(new VariableMapperWrapper(orig));
compositeComponentBase.pushComponentToEL(context, compositeComponentBase);
compositeComponentFacelet.apply(context, compositeComponentBase);