try {
      iterator.next();
      fail("no exception thrown");
    } catch (NoSuchElementException expected) {
    }
    try {
      iterator.previous();
      fail("no exception thrown");
    } catch (NoSuchElementException expected) {
    }
    try {
      iterator.remove();
      fail("no exception thrown");
    } catch (UnsupportedOperationException expected) {
    }
    try {

        CacheBuilder.newBuilder().build(exceptionLoader(ee));

    try {
      cacheUnchecked.get(new Object());
      fail();
    } catch (ExecutionException e) {
      fail();
    } catch (UncheckedExecutionException caughtEe) {
      assertThat(caughtEe).hasCauseThat().isSameInstanceAs(uee);
    }

    UncheckedExecutionException caughtUee =
        assertThrows(

      fail();
    } catch (IllegalArgumentException expected) {
    }

    try {
      Set<Set<Integer>> unused = powerSet(ContiguousSet.closed(0, Integer.MAX_VALUE / 2));
      fail();
    } catch (IllegalArgumentException expected) {
    }

    try {
      powerSet(singleton(null));
      fail();
    } catch (NullPointerException expected) {
    }
  }

 * strings. This only supports the {@code "%s"} specifier, not the full range of {@link
 * java.util.Formatter} specifiers. However, note that if the number of arguments does not match the
 * number of occurrences of {@code "%s"} in the format string, {@code Preconditions} will still
 * behave as expected, and will still include all argument values in the error message; the message

  private static final class IsEither extends FastMatcher {

    private final char match1;
    private final char match2;

    IsEither(char match1, char match2) {
      this.match1 = match1;
      this.match2 = match2;
    }

    @Override
    public boolean matches(char c) {
      return c == match1 || c == match2;
    }

    @GwtIncompatible // used only from other GwtIncompatible code

      appendResultObject(builder, value);
      builder.append("]");
    } catch (ExecutionException e) {
      builder.append("FAILURE, cause=[").append(e.getCause()).append("]");
    } catch (CancellationException e) {
      builder.append("CANCELLED"); // shouldn't be reachable
    } catch (Exception e) { // sneaky checked exception

    try {
      diff1.entriesInCommon().put(7, "x");
      fail();
    } catch (UnsupportedOperationException expected) {
    }
    try {
      diff1.entriesOnlyOnLeft().put(7, "x");
      fail();
    } catch (UnsupportedOperationException expected) {
    }
    try {
      diff1.entriesOnlyOnRight().put(7, "x");
      fail();
    } catch (UnsupportedOperationException expected) {
    }
  }

    try {
      diff1.entriesInCommon().put(7, "x");
      fail();
    } catch (UnsupportedOperationException expected) {
    }
    try {
      diff1.entriesOnlyOnLeft().put(7, "x");
      fail();
    } catch (UnsupportedOperationException expected) {
    }
    try {
      diff1.entriesOnlyOnRight().put(7, "x");
      fail();
    } catch (UnsupportedOperationException expected) {
    }
  }

        CacheBuilder.newBuilder().build(exceptionLoader(ee));

    try {
      cacheUnchecked.get(new Object());
      fail();
    } catch (ExecutionException e) {
      fail();
    } catch (UncheckedExecutionException caughtEe) {
      assertThat(caughtEe).hasCauseThat().isSameInstanceAs(uee);
    }

    UncheckedExecutionException caughtUee =
        assertThrows(

  private static final class IsEither extends FastMatcher {

    private final char match1;
    private final char match2;

    IsEither(char match1, char match2) {
      this.match1 = match1;
      this.match2 = match2;
    }

    @Override
    public boolean matches(char c) {
      return c == match1 || c == match2;
    }

    @GwtIncompatible // used only from other GwtIncompatible code