* [Java] Fix content for enum in addPartToMultiPartBuilder ([#19973](https://github.com/OpenAPITools/openapi-generator/issues/19973))
* [Java] Fix content for enum with restclient (#19973)
* [Java] Fix content for enum with restclient (#19973)
* [Java] Fix content for enum with restclient (#19973)
* update samples
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Co-authored-by: Michael Bornholdt Nielsen <michaelbornholdtnielsen@gmail.com>
Co-authored-by: Michael Bornholdt Nielsen <jarryDk@users.noreply.github.com>
* Make all Java ApiClients in templates extendable
* Make all Java ApiClients in samples extendable
* Fix compilation of enum constructor
* Fix compilation of enum constructor in templates
* Align indentation
* Add equals and hashcode to singleRequestParameter static class
* Add missing sample updates that were affected by new imports
* add restclient sample
* update FILES, chmod=+x
* Update samples with jakarta annotations
* Updates samples
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Co-authored-by: martin-mfg <2026226+martin-mfg@users.noreply.github.com>