@Override
    protected Object sendSearchRequest(Query query, Object context) {
        this.query = query;
        if (monitor != null) {
            monitor.responseAvailable(this);
        }
        return context;
    }
A search invoker that will immediately produce an error that occurred during
invoker construction. Currently used for invalid searchpath values and node
failure

@author ollivir
container-search/src/main/java/com/yahoo/search/dispatch/SearchErrorInvoker.java