package bip {
  class Foo() {
    protected def this(name: String) = this()
  }

  class Foo2 protected (name: String) { }

  protected class Foo3(name: String) { }
}

package bop {
  import bip._

  object P {
    val foo = new Foo("abc")
    val foo2 = new Foo2("abc")
    val foo3 = new Foo3("abc")
  }
}

bip.scala:15: error: wrong number of arguments for constructor Foo: ()bip.Foo
    val foo = new Foo("abc")
              ^
bip.scala:16: error: constructor Foo2 cannot be accessed in object P
    val foo2 = new Foo2("abc")
               ^
bip.scala:17: error: class Foo3 cannot be accessed in package bip
    val foo3 = new Foo3("abc")
                   ^
three errors found  

bip.scala:17: error: class Foo3 cannot be accessed in package bip
    val foo3 = new Foo3("abc")
                   ^
one error found