Support jakarta.* namespaces

[MasatoshiTada]

Describe the Feature

When I call AmazonS3#putObject() , I can see a WARN log below:

JAXB is unavailable. Will fallback to SDK implementation which may be less performant

So I added dependencies of 3.0.0 (this version is the latest) of jakarta.xml.bind:jakarta.xml.bind-api and com.sun.xml.bind:jaxb-api . But unfortunately, I still see the WARN log above.

I changed versions from 3.0.0 to 2.3.3 , and the WARN log was disappered.

It seems that aws-sdk-java doesn't support jakarta.* namespaces.

Is your Feature Request related to a problem?

At this time, this is not a very big problem. But it becomes bigger with the lapse of time.

Proposed Solution

Describe alternatives you've considered

As I mentioned above, use 2.3.3 . And if you use JDK 8, this problem doesn't occur.

Additional Context

Your Environment

• AWS Java SDK version used: 1.11.327
• JDK version used: 11
• Operating System and version: macOS Big Sur 11.2.3 (M1)

[debora-ito]

Hi @MasatoshiTada yes, currently the SDK only supports javax.xml.bind:jaxb-api, to work around the issue you can add the lib as a dependency. Marking as a feature request.

Please note that as the team's focus is in SDK v2 work, we don't have a timeline for when this will be prioritized.

[MasatoshiTada]

@debora-ito Thank you for your comment!

Please note that as the team's focus is in SDK v2 work, we don't have a timeline for when this will be prioritized.

Do you have any plan to support jakarta.* namespaces in SDK v2?👀

[antechrestos]

Still no news on this issue?

[debora-ito]

@MasatoshiTada

I believe we don't use any package in SDK v2 that requires migrating to jakarta namespaces. If you are seeing otherwise, please share your dependency tree.

[antechrestos]

Indeed, migration to sdk v2 works like a charm

[debora-ito]

We don't have plans to support this in v1, so I'll go ahead and close this issue.

This issue is not present in v2, please migrate to v2 for the improved performance and continued support from aws.

Reference:

• Announcing end-of-support for AWS SDK for Java v1.x effective December 31, 2025 - blog post

[github-actions]

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