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https://issues.apache.org/jira/browse/HDDS-13342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17986644#comment-17986644
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Attila Doroszlai commented on HDDS-13342:
-----------------------------------------

[~ivanandika], CI builds Ozone with Java 21, in two ways:
- _build_ check: targeting Java 8
- _compile (21)_ check: targeting Java 21

I don't see any AJC errors in either of those builds.

Also, what about other parts of javax.xml.bind API?

{{javax.xml.bind}} is available for newer JDK in {{jakarta.xml.bind-api}}, 
which we already use.

> Replace DatatypeConverter.printHexBinary with Hex.encodeHexString
> -----------------------------------------------------------------
>
>                 Key: HDDS-13342
>                 URL: https://issues.apache.org/jira/browse/HDDS-13342
>             Project: Apache Ozone
>          Issue Type: Sub-task
>            Reporter: Ivan Andika
>            Assignee: Chia-Chuan Ho
>            Priority: Minor
>
> When trying to use DatatypeConverter.printHexBinary and build it on JDK21 
> environment on the ozone-manager module, I encountered the following exception
> {code:java}
> [ERROR] Failed to execute goal 
> dev.aspectj:aspectj-maven-plugin:1.14.1:compile (default) on project 
> ozone-manager: AJC compiler errors: 3369
> [ERROR] error at import javax.xml.bind.DatatypeConverter;
> The import javax.xml.bind.DatatypeConverter cannot be resolved{code}
> This seems to be related javax.xml.bind removal in the newer JDK and 
> aspectj-maven-plugin compiler being more strict than the normal javac 
> compiler.
> To prevent this issue we can replace DatatypeConverter.printHexBinary with 
> the Hex.encodeHexString instead. We need to ensure that the behavior remains 
> unchanged, especially need to check the lowercase handling (e.g. 
> Hex.encodeHexString by default will automatically return the result in 
> lowercase). Afterwards, we can ban javax.xml.bind.DatatypeConverter in 
> pom.xml.



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