Add header params to MultipartFormDataOutput and FileUpload

[comrt]

• Closes: Add header params to MultipartFormDataOutput and FileUpload #48709

[comrt]

@geoand can you pls look into my PR?
Sorry for taking such a long time, i still have to get into the groove of committing to quarkus

[geoand]

Nice, thanks a lot!

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit c222323.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

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Flaky tests - Develocity

⚙️ JVM Integration Tests - JDK 17

📦 integration-tests/kafka-devservices

✖ io.quarkus.it.kafka.continuoustesting.DevServicesDevModeTest.testDevModeServiceDoesNotRestartContainersOnCodeChange - History

• 1 expectation failed. Expected status code <200> but was <500>. - java.lang.AssertionError

java.lang.AssertionError: 
1 expectation failed.
Expected status code <200> but was <500>.

	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)

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⚙️ JVM Integration Tests - JDK 21

📦 integration-tests/kafka-devservices

✖ io.quarkus.it.kafka.continuoustesting.DevServicesDevModeTest.testDevModeServiceDoesNotRestartContainersOnCodeChange - History

• New containers: [Container(command=sh -c 'while [ ! -f /work/run.sh ]; do sleep 0.1; done; sleep 0.1; /work/run.sh', created=1751965600, id=b6b02983b6cf5b40944a6a53fef42c85e83d343dc374d8d92462946034c2fb5b, image=quay.io/ogunalp/kafka-native:latest, imageId=sha256:99fa71388449ac7ff46bda7f6d645fb4435d9a21dce3d4dbcaedfc8a738afd6b, names=[/pensive_neumann], ports=[ContainerPort(ip=0.0.0.0, privatePort=9092, publicPort=32846, type=tcp), ContainerPort(ip=::, privatePort=9092, publicPort=32846, type=tcp)], labels={architecture=x86_64, build-date=2025-03-25T21:45:00Z, com.redhat.component=ubi9-micro-container, com.redhat.license_terms=https://www.redhat.com/en/about/red-hat-end-user-license-agreements\#UBI, description=Very small image which doesn't install the package manager., distribution-scope=public, io.buildah.version=1.39.0-dev, io.k8s.description=Very small image which doesn't install the package manager., io.k8s.display-name=Red Hat Universal Base Image 9 Micro, io.openshift.expose-... - org.opentest4j.AssertionFailedError

org.opentest4j.AssertionFailedError: 
New containers: [Container(command=sh -c 'while [ ! -f /work/run.sh ]; do sleep 0.1; done; sleep 0.1; /work/run.sh', created=1751965600, id=b6b02983b6cf5b40944a6a53fef42c85e83d343dc374d8d92462946034c2fb5b, image=quay.io/ogunalp/kafka-native:latest, imageId=sha256:99fa71388449ac7ff46bda7f6d645fb4435d9a21dce3d4dbcaedfc8a738afd6b, names=[/pensive_neumann], ports=[ContainerPort(ip=0.0.0.0, privatePort=9092, publicPort=32846, type=tcp), ContainerPort(ip=::, privatePort=9092, publicPort=32846, type=tcp)], labels={architecture=x86_64, build-date=2025-03-25T21:45:00Z, com.redhat.component=ubi9-micro-container, com.redhat.license_terms=https://www.redhat.com/en/about/red-hat-end-user-license-agreements#UBI, description=Very small image which doesn't install the package manager., distribution-scope=public, io.buildah.version=1.39.0-dev, io.k8s.description=Very small image which doesn't install the package manager., io.k8s.display-name=Red Hat Universal Ba...

[FroMage]

Are you sure about this @geoand ? There seems to be the addition of the header as parameter indeed, but no tests that I can see, and I could not see where these headers are used or filled. Did I miss something?