invalid access to protected function, weird issue

# announcements

[Jiri Bruchanov]

invalid access to protected function, weird issue

[Jiri Bruchanov]

open class Test {
    protected open fun test() {}
}

open class SubClassTest : Test() {
    var classTest: Test = Test()

    public override fun test() {
        //failing because "test()" is protected in Test
        //java is fine with it
        classTest.test()
    }
}

[Jiri Bruchanov]

Am I missing something ?
this code is perfectly fine in java

[diesieben07]

protected is more strict in Kotlin than in Java. It does not include "package-private" (since there is no such thing in Kotlin).
In Java you can access the test here, because its the same package.
If Test were in a different package than SubClassTest this access would not be allowed from Java eitherr.

[Jiri Bruchanov]

i'm not sure if I follow it...
same package, it's marked as protected.

Why shouldn't I be able to access it ?

java's package-private is not involved in that example, or am I wrong ?

[diesieben07]

Java's protected includes package-private ("default") visibilty.

[diesieben07]

That is what is granting you access here, not the "protected"-ness.

[diesieben07]

The definition "subclasses can access it" is a bit misleading. What you can access is that method on instances of the subclass.

[Jiri Bruchanov]

interesting, thanks for details...