@Override
    public int hashCode() {
        return this.extendGUID1.hashCode() + this.extendGUID2.hashCode();
    }
Override the GetHashCode.

@return Return the hash value.
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/onenote/fsshttpb/streamobj/basic/CellID.java