Try lifting to Gradle 7.0

[robertpanzer]

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Kind of change

• Bug fix
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Description

What is the goal of this pull request?

This PR tries to bring the build to Gradle 7.0.
I can't tell if the dependency declarations are all correct, the new scopes are still a mystery right now (I didn't spend much time yet digging into them)
Except the wildfly integration test everything seems to run on OSX.

@abelsromero Could you please check if this works on your machine? I've seen your issue yesterday and made an attempt myself today.

How does it achieve that?

Are there any alternative ways to implement this?

Are there any implications of this pull request? Anything a user must know?

Issue

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Fixes #Issue

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[abelsromero]

Worked fine for me on Linux and MacOS. Thanks!!

[robertpanzer]

Thanks! And the CI build also worked with Java 16 now.
I guess we can look at the wildfly test later, that seems to be a Java/Gradle problem rather than an AsciidoctorJ problem.

[robertpanzer]

I'll check the poms tomorrow if they are still correct.

[abelsromero]

Running locally I see Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field private java.security.ProtectionDomain[] java.security.AccessControlContext.context accessible: module java.base does not "opens java.security" to unnamed module @18b9aa90with is to be expected with Java 16. Probably something wildfly team is already aware.

[robertpanzer]

I managed to fix the Wildfly integration test.
Apparently I have been doing not enough JavaEE & Arquillian development lately, stupid me.

Also upgraded Gradle to 7.0-rc-1.

The generated poms are mostly identical now to the previous version, only the dependency for jcommander has changed from compile to runtime. I think this is fine since this library is only used for the CLI.

[robertpanzer]

Stupid me, I was running with a wrong Java version, Wildfly still fails on Java 16.
Excluded it for no only for Java 16.

[abelsromero]

I got it working on my Linux machine.
Your changes gave me the idea the issue may be on the Arquillian side, just updated versions and added a RH repo required (don't ask me why)

ext {
    arquillianVersion = '1.6.0.Final'
    arquillianWildflyVersion = '3.0.1.Final'

    wildflyVersion = '23.0.0.Final'
}

repositories {
    maven {
        url "https://maven.repository.redhat.com/ga/"
    }
}

Furthermore, this runs without adding any extra Java16 condition to the build scripts.

[robertpanzer]

Great find!
Do you want to create a PR? Then I'd merge mine now and merge yours on top.