Prerequisites usages in pom.xml

[khmarbaise]

Based on the usage of

<prerequisites>
   ...
</prerequisites>

The build produces the following warnings:

[INFO] Scanning for projects...
[WARNING] The project org.antlr:antlr4-runtime-testsuite:jar:4.9.2-SNAPSHOT uses prerequisites which is only intended for maven-plugin projects but not for non maven-plugin projects. For such purposes you should use the maven-enforcer-plugin. See https://maven.apache.org/enforcer/enforcer-rules/requireMavenVersion.html
[WARNING] The project org.antlr:antlr4-tool-testsuite:jar:4.9.2-SNAPSHOT uses prerequisites which is only intended for maven-plugin projects but not for non maven-plugin projects. For such purposes you should use the maven-enforcer-plugin. See https://maven.apache.org/enforcer/enforcer-rules/requireMavenVersion.html
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 

The <prerequities>..</prerequities> makes only for the antlr4-maven-plugin sense. All other parts should be checked via maven-enforcer-plugin instead.

The minimum to be required for the antl4-maven-plugin should be 3.0.5 instead of 3.0, because 3.0.0 contains a lot of bugs etc. Apart from that based on the dependencies defined in the antlr4-maven-plugin the level should be lifted to minimum requirement for the plugin to 3.3.9

The minimum to build the whole antlr project is from my point of view 3.3.9 or even higher. But I would suggest to set the minimum level to 3.3.9.

Based on the usage of the takari lilfecycle you have to build at least with Maven 3.2.1

[chris-miner]

I was going to write this up as a discussion, when I thought to check if it was already an issue. Now that I found the issue and a related commit, I figured there would be a PR. I can't find a PR from @khmarbaise. @khmarbaise are these changes part of a PR?