Spring Data Mongo fails while converting the Document to Object type

[logztechstuff]

We have a POJO class that contains the Map with key type as String and value type as Object (Map<String, Object>). Until version 3.1, the Document from DB is converted properly to Map<String, Object>. Once we upgraded to 3.2, the conversion is failing with an error,

org.springframework.data.mapping.MappingException: Expected to read Document Document{} into type class java.lang.Object but didn't find a PersistentEntity for the latter!

The read method of MappingMongoConvertor had a statement, if (typeToUse.equals(ClassTypeInformation.OBJECT)) { return (S) bson; }

But the above code is not available in the latest versions of the MappingMongoConvertor.

Please help us with how to solve this problem.

Thanks in advance.

[christophstrobl]

If you'd like us to spend some time investigating, please take the time to provide a complete minimal sample (something that we can unzip or git clone, build, and deploy) that reproduces the problem.

[logztechstuff]

Hi @christophstrobl Thanks for the response. Ours is a very large project, so didn't share the sample. I will work on a small project with a similar use case and share it. Thanks again.

[mp911de]

See also https://stackoverflow.com/questions/73689924/spring-data-mongo-conversion-is-not-working-for-object-type-since-version-3-2

[christophstrobl]

Closing this one because we cannot reproduce the issue.