@Override
    public QueryProfileProperties clone() {
        QueryProfileProperties clone = (QueryProfileProperties)super.clone();
        if (this.values != null)
            clone.values = PropertyMap.cloneMap(this.values);
        return clone;
    }
Sets a value in this query profile

@throws IllegalInputException if this property cannot be set in the wrapped query profile
container-search/src/main/java/com/yahoo/search/query/profile/QueryProfileProperties.java