Parallel build fails with invalid order of building

[michalszynkiewicz]

Code Gen needs deployment modules of Quarkus extensions to be available during generate-sources phase of maven build of integration tests.
This dependency is not know to maven and a parallel build can fail with:

[ERROR] Failed to execute goal io.quarkus:quarkus-maven-plugin:999-SNAPSHOT:prepare (default) on project quarkus-integration-test-grpc-tls: Prepare phase of the quarkus-maven-plugin threw an error: Failed to create the application model for io.quarkus:quarkus-integration-test-grpc-tls::jar:999-SNAPSHOT: Failed to resolve artifacts: The following artifacts could not be resolved: io.quarkus:quarkus-resteasy-mutiny-deployment:jar:999-SNAPSHOT, io.quarkus:quarkus-grpc-deployment:jar:999-SNAPSHOT: Failure to find io.quarkus:quarkus-resteasy-mutiny-deployment:jar:999-SNAPSHOT in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [Help 1]
[ERROR] Failed to execute goal io.quarkus:quarkus-maven-plugin:999-SNAPSHOT:prepare (default) on project quarkus-integration-test-grpc-mutual-auth: Prepare phase of the quarkus-maven-plugin threw an error: Failed to create the application model for io.quarkus:quarkus-integration-test-grpc-mutual-auth::jar:999-SNAPSHOT: Failed to resolve artifacts: The following artifacts could not be resolved: io.quarkus:quarkus-resteasy-mutiny-deployment:jar:999-SNAPSHOT, io.quarkus:quarkus-grpc-deployment:jar:999-SNAPSHOT: Failure to find io.quarkus:quarkus-resteasy-mutiny-deployment:jar:999-SNAPSHOT in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [Help 1]

With skipped test, It doesn't happen with the usual quarkus-maven-plugin run because setting skipTests sets quarkus.build.skip to true.

Setting quarkus.prepare.skip to true in this case would cause java compilation to fail, so we need to figure out another way to solve it.

[famod]

See also: ongoing discussion on zulip

[famod]

Not sure about the area/housekeeping but since this is not a user-facing bug I felt I had to add something...

[famod]

@michalszynkiewicz In case no objections are raised on zulip (or here): Do you want to introduce those deployment dependecies or can/shall I do it?

[michalszynkiewicz]

@famod if you have time for it, I'd be grateful :)