!7

static new InheritableThreadLocal<S> tl;

p {
  thread {
    tl.set("thread1");
    assertEqualsVerbose("thread1", tl!);
    thread {
      assertEqualsVerbose("thread1", tl!);
    }
  }
  
  thread {
    assertEqualsVerbose(null, tl!);
  }
  
  sleepSeconds(1); // Too lazy to join threads
}