}
  }

  @Test
  fun testToStringIsClassname() {
    assertThat(Jdk9Platform().toString()).isEqualTo("Jdk9Platform")
  }

  @Test
  fun selectedProtocolIsNullWhenSslSocketThrowsExceptionForApplicationProtocol() {
    platform.assumeJdk9()
    val applicationProtocolUnsupported =
      object : DelegatingSSLSocket(null) {