accesses.scala:23: error: error overriding method f2 in class A of type => unit;
 method f2 has weaker access privileges; it should not be private
  private def f2: unit = ()
              ^
accesses.scala:24: error: error overriding method f3 in class A of type => unit;
 method f3 has weaker access privileges; it should be at least protected
  private[p2] def f3: unit = ()
                  ^
accesses.scala:25: error: error overriding method f4 in class A of type => unit;
 method f4 has weaker access privileges; it should be at least private[p1]
  private[p2] def f4: unit
                  ^
accesses.scala:26: error: error overriding method f5 in class A of type => unit;
 method f5 has weaker access privileges; it should be at least protected[p1]
  protected[p2] def f5: unit
                    ^
four errors found