fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      MediaType.parse("te<t/plain");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      MediaType.parse("text/pl@in");
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      MediaType.parse("text/plain;");
      fail();

      try {
        LongMath.ceilingPowerOfTwo(x);
        fail("Expected IllegalArgumentException");
      } catch (IllegalArgumentException expected) {
      }
    }
  }

  public void testFloorPowerOfTwoNegative() {
    for (long x : NEGATIVE_LONG_CANDIDATES) {
      try {
        LongMath.floorPowerOfTwo(x);
        fail("Expected IllegalArgumentException");
      } catch (IllegalArgumentException expected) {

  }

  /**
   * Just like fail(reason), but additionally recording (using threadRecordFailure) any
   * AssertionFailedError thrown, so that the current testcase will fail.
   */
  public void threadFail(String reason) {
    try {
      fail(reason);
    } catch (AssertionFailedError t) {
      threadRecordFailure(t);
      fail(reason);
    }
  }

  /**

      // One more than maximum value
      UnsignedLongs.decode("0xfffffffffffffffff");
      fail();
    } catch (NumberFormatException expected) {
    }

    try {
      UnsignedLongs.decode("-5");
      fail();
    } catch (NumberFormatException expected) {
    }

    try {
      UnsignedLongs.decode("-0x5");
      fail();
    } catch (NumberFormatException expected) {
    }

    try {

      // One more than maximum value
      UnsignedInts.decode("0xfffffffff");
      fail();
    } catch (NumberFormatException expected) {
    }

    try {
      UnsignedInts.decode("-5");
      fail();
    } catch (NumberFormatException expected) {
    }

    try {
      UnsignedInts.decode("-0x5");
      fail();
    } catch (NumberFormatException expected) {
    }

    try {

      return;
    }
    fail();
  }

  public void testStaticOneArgMethodsThatShouldPass() throws Exception {
    for (String methodName : STATIC_ONE_ARG_METHODS_SHOULD_PASS) {
      Method method = OneArg.class.getMethod(methodName, String.class);
      try {
        new NullPointerTester().testMethodParameter(new OneArg(), method, 0);
      } catch (AssertionError unexpected) {

                  + ".");
      return;
    }
    fail();
  }

  public void testEqualsOnReturnValues_bad() throws Exception {
    try {
      tester.forAllPublicStaticMethods(BadEqualsFactory.class).testEquals();
    } catch (AssertionError expected) {
      return;
    }
    fail();
  }

  private static class BadEqualsFactory {

  }

  public void testNullListener() {
    try {
      future.addListener(null, directExecutor());
      fail();
    } catch (NullPointerException expected) {
    }
  }

  public void testNullExecutor() {
    try {
      future.addListener(doNothing(), null);
      fail();
    } catch (NullPointerException expected) {
    }
  }

  public void testNullTimeUnit() throws Exception {

      try {
        BigIntegerMath.ceilingPowerOfTwo(x);
        fail("Expected IllegalArgumentException");
      } catch (IllegalArgumentException expected) {
      }
    }
  }

  public void testFloorPowerOfTwoNegative() {
    for (BigInteger x : NEGATIVE_BIGINTEGER_CANDIDATES) {
      try {
        BigIntegerMath.floorPowerOfTwo(x);
        fail("Expected IllegalArgumentException");

  }

  public void testEnsureCapacity_fail() {
    try {
      Longs.ensureCapacity(ARRAY1, -1, 1);
      fail();
    } catch (IllegalArgumentException expected) {
    }
    try {
      // notice that this should even fail when no growth was needed
      Longs.ensureCapacity(ARRAY1, 1, -1);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testJoin() {