* java/lang/ref/FinalizationTester.java
   */
  @Throws(Exception::class)
  @JvmStatic
  fun awaitGarbageCollection() {
    Runtime.getRuntime().gc()
    Thread.sleep(100)
    System.runFinalization()
  }

  @JvmStatic
  fun assumeNetwork() {
    try {
      InetAddress.getByName("www.google.com")
    } catch (uhe: UnknownHostException) {
      assumeTrue(false, "requires network")
    }
  }

  }

  // ----------------------------------------------------------------
  // Test that interrupts result in RuntimeException, not InterruptedException.
  // Trickier than it looks, because runFinalization swallows interrupts.
  // ----------------------------------------------------------------

  class Interruptenator extends Thread {
    final AtomicBoolean shutdown;

    Interruptenator(Thread interruptee) {

  }

  // ----------------------------------------------------------------
  // Test that interrupts result in RuntimeException, not InterruptedException.
  // Trickier than it looks, because runFinalization swallows interrupts.
  // ----------------------------------------------------------------

  class Interruptenator extends Thread {
    final AtomicBoolean shutdown;

    Interruptenator(Thread interruptee) {