In Groovy, to declare a method or class with package-private visibility, we need to use @PackageScope annotation.

import groovy.transform.PackageScope
import java.lang.reflect.Modifier

@PackageScope
class Task {
    @PackageScope
    void run() {
    }
}

def modifiers = Task.class.modifiers
printf "'%s'%n", Modifier.toString(modifiers)

modifiers = Task.class.getDeclaredMethod("run").modifiers
printf "'%s'%n", Modifier.toString(modifiers)

Output

''
''

Per java standard empty modifier means no explicit modifier i.e. package-private

Example Project

Dependencies and Technologies Used:

• Groovy 2.5.6
• JDK 9.0.1