Data loss after updating to the latest SDK version(5.25.0).

[lakshman-pavan]

Describe the Bug

We are working with a non–Spring Boot Java application deployed on SAP BTP Cloud Foundry. As part of a buildpack upgrade, the SDK version was also updated to 5.25.0. After this upgrade, we observed a significant reduction in the volume of data retrieved compared to the behavior prior to the update.

The application connects to SAP S/4HANA Public Cloud, retrieves data, and generates CSV files when triggered from CPI. Upon comparing the newly generated CSV files with those created before the upgrade, we noticed that the record counts do not match and are substantially lower.

Internally, the application executes in two phases: in the first phase, it fetches data using OData V2 and V4 APIs; in the second phase, it maps the retrieved data according to business requirements and generates the CSV files.

Documentations Followed
https://sap.github.io/cloud-sdk/docs/java/features/odata/vdm-generator
https://sap.github.io/cloud-sdk/docs/java/guides/5.0-upgrade-steps

Steps to Reproduce

1. Apply the required changes and deploy the application to SAP BTP Cloud Foundry.
2. Trigger the corresponding endpoint via a POST request to validate and retrieve data for an individual file.
3. Deploy and execute the CPI integration flow to trigger the complete application and generate all CSV files.
4. Compare the generated CSV files with those produced prior to the build pack and SDK upgrade and observe the discrepancy in record counts.

Expected Behavior

Prior to the upgrade, the application retrieved approximately 20,000 records. After the buildpack and SDK upgrade, the record count has dropped to around 12,000.

Screenshots

No response

Used Versions

SDK Version - 5.25.0

Code Examples

// Your code here

Stack Trace

No response

Log File

Log file

...

Affected Development Phase

Production

Impact

Blocked

Timeline

Go-Live on 31st Jan 2026

[rpanackal]

Hello @lakshman-pavan,

Thanks for reaching out. Could you gather a bit more information so we can help you?

What was the previous version you were using?
Do you have code sample for how you apply our SDK?
Do you have logs we may look at see the events in your flow?

Since such an issue has not been reported prior to the best of my knowledge, we would need more information to carry on.

[lakshman-pavan]

Thank you for the reply @rpanackal

Our application was previously running on SDK version 3.58.0 with Java 8. As part of the migration, we followed all steps outlined in the official documentation shared earlier. The application has now been successfully upgraded to SDK version 5.25.0, is running on Java 21, and the build pack has been migrated from sap_java_buildpack to sap_java_buildpack_jakarta.