Fix issue1386/use maven plugin to validate java version

[Munandermaan]

Pull Request Checklist

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Fixes

Fixes #1386

Purpose

Use maven-Enforcer-plugin to validate java -version

[ihostage]

@Munandermaan
For add enforced-plugin to hello-world-maven-archetype, need to change the next file https://github.com/lagom/lagom/blob/master/dev/archetypes/maven-java/src/main/resources/archetype-resources/pom.xml

[ihostage]

But I think that we don't need to fix this issue. Because Lagom doesn't work with Java 11 only on DEV-Mode. And this problem will be fixed after integrating with Testcontainers for DEV-Mode.

[Munandermaan]

@Munandermaan
For add enforced-plugin to hello-world-maven-archetype, need to change the next file https://github.com/lagom/lagom/blob/master/dev/archetypes/maven-java/src/main/resources/archetype-resources/pom.xml

Done

[Munandermaan]

But I think that we don't need to fix this issue. Because Lagom doesn't work with Java 11 only on DEV-Mode. And this problem will be fixed after integrating with Testcontainers for DEV-Mode
@ihostage This may be like an extra feature to tell user about the java version

[ihostage]

@ihostage This may be like an extra feature to tell user about the java version

Yes. But users can think that Lagom supports only Java 8 version, but it's not true 😄
How about the source and target Java version on compiler plugin?