Update parent POM

[cstamas]

Changes:

• remove prerequisite (is for maven-plugin packaging only, added enforcer instead)
• update plugins
• add globally enforcer (to enforce modern Maven)
• clean up
• drop Sonatype brain-dead plugin (will require manual close, that's all)
• this above to be able to utilize latest 3.1.1 deployAtEnd etc

[grgrzybek]

Thanks @cstamas however let me think a bit about this ;)
I've kind of inherited the release process for OPS4J (@jbonofre is sometimes releasing OPS4J artifacts too) and it's a bit fragile - I'm not sure how it'll impact release process via https://oss.sonatype.org/#stagingRepositories..

But that's really something to consider - let me check next week.

[cstamas]

As I see from current master, all that sonatype plugin was doing is "close" staging repo, nothing more. With removal of this plugin this will be the "only thing" lost (so will require manual step for user to browse to ossrh, login and close repo). OTOH, what you gain is use of modern resolver transport, proper deployAtAnd support and many more (as staging plugin replaces maven plugins).

[grgrzybek]

got it - and I've debugged sonatype-maven-plugin, which does some tricky replacement of maven-deploy-plugin executions from the lifecycle - it'd be good to switch to canonical Maven usage.