#vulnerable code 
                                @Override
    @JsonIgnore
    public Collection<Dimension> getDimensions() {
        return getInnerQuery().getDimensions();
    } 
                            #location 4 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @Override
    @JsonIgnore
    public Collection<Dimension> getDimensions() {
        return getInnerQueryUnchecked().getDimensions();
    }