[java] NativeArray issue

[nadako]

As discussed in Slack...

class A<T> {
    var a:java.NativeArray<T>;
    public function new() {
        a = new java.NativeArray(10);
    }
    public inline function get(i:Int):T {
        return a[i];
    }
}


class Main {
    static function main() {
        var a = new A<Int>();
        Sys.println(a.get(0));
    }
}

Generated Java:

    public static void main()
    {
        //line 14 "d:\\Code\\playground\\src\\Main.hx"
        haxe.root.A<java.lang.Object> a = new haxe.root.A<java.lang.Object>();
        //line 15 "d:\\Code\\playground\\src\\Main.hx"
        java.lang.System.out.println(((java.lang.Object) (((int[]) (((java.lang.Object[]) (a.a) )) )[0]) ));
    }

This fails compiling with:

src\haxe\root\Main.java:39: error: incompatible types: Object[] cannot be converted to int[]
        java.lang.System.out.println(((java.lang.Object) (((int[]) (((java.lang.Object[]) (a.a) )) )[0]) ));

[nadako]

It seems like it's not Java-specific, because I got pretty much the same issue with C# when -D erase-generics (see 3fe3fab).

[Simn]

This is also #3398.