public StorageIndexRevisionMapping findStorageIndexRevisionMapping(
            ExGuid revisionExtendedGUID) {
        StorageIndexRevisionMapping instance = null;
        if (this.storageIndex != null) {
            instance = this.storageIndex.storageIndexRevisionMappingList.stream()
                    .filter(r -> r.revisionExGuid.equals(revisionExtendedGUID)).findFirst()
                    .orElse(new StorageIndexRevisionMapping());
        }

        return instance;
    }
This method is used to find the Storage Index Revision Mapping that matches the Revision Mapping Extended GUID.

@param revisionExtendedGUID Specify the Revision Mapping Extended GUID.
@return Return the instance of Storage Index Revision Mapping.
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/onenote/fsshttpb/MSOneStorePackage.java