t3692.scala:11: warning: type Integer in package scala is deprecated: use <code>java.lang.Integer</code> instead
      case m0: Map[Int, Int] => new java.util.HashMap[Integer, Integer]
                                              ^
t3692.scala:12: warning: type Integer in package scala is deprecated: use <code>java.lang.Integer</code> instead
      case m1: Map[Int, V] => new java.util.HashMap[Integer, V]
                                            ^
t3692.scala:13: warning: type Integer in package scala is deprecated: use <code>java.lang.Integer</code> instead
      case m2: Map[T, Int] => new java.util.HashMap[T, Integer]
                                            ^
t3692.scala:13: error: unreachable code
      case m2: Map[T, Int] => new java.util.HashMap[T, Integer]
                              ^
three warnings found
one error found