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Ivar Grimstad: Hashtag Jakarta EE #3383 days

Welcome to issue number three hundred and thirty-eighth of Hashtag Jakarta EE!

We are entering the summer months on the Northern Hemisphere, and with that the activity generally gets a little lower. Jakarta EE is no exception. However, the wor...

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Rustam Mehmandarov: Unknown JSON fields in Java REST clients: JSON-B, Jackson, Quarkus, and Spring Boot4 days

You call an API with the MicroProfile REST Client, map the response onto a small DTO, and one day the API starts returning a few extra fields you never asked for. Does your client shrug and carry on, or does it blow up with a deserialization error? The honest answer is “it depends on your JSON provider” – and the defaults are not the same across the board. Let’s pin down ...

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Rustam Mehmandarov: Jakarta EL: safer rules without handwritten predicate parsers1 week

Jakarta Expression Language (EL) is already part of the platform, but we usually meet it indirectly through Faces, CDI, or Bean Validation. In this post, we will use it directly: as a small in-process predicate engine for authorization policies. We will replace...

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