ExecutionException e = assertThrows(ExecutionException.class, () -> future.get());
    assertThat(e).hasCauseThat().isSameInstanceAs(expected);
  }

  @J2ktIncompatible
  @GwtIncompatible // threads
  public void testRenaming() throws Exception {
    String oldName = Thread.currentThread().getName();
    Supplier<String> newName = Suppliers.ofInstance("MyCrazyThreadName");
    Callable<@Nullable Void> callable =