This lines are from GroovyFx project, which was written for Java 8.
What does the classpath variables mean and how can be this translated into the latest Gradle specifications?:

I was confused when looking at the gradle source code. The destinationDirectory property in the AbstractArchiveTask is not declared AbstractArchiveTask, but why can it be called directly?

when i read doc:https://docs.gradle.org/current/javadoc/org/gradle/api/publish/maven/MavenPublication.html. i saw content blow.