assertEquals(TimeZone.getDefault(), result);
    }

    // Test getRequestedTimeZone() with different default time zone
    public void test_getRequestedTimeZone_withDifferentDefaultTimeZone() {
        // Store original time zone
        TimeZone originalTimeZone = TimeZone.getDefault();

        try {
            // Change default time zone temporarily

        // Store original timezone settings
        originalTimeZone = TimeZone.getDefault();
        originalProvider = getDBFluteSystemTimeZoneProvider();
    }

    @Override
    public void tearDown() throws Exception {
        // Restore original timezone settings
        TimeZone.setDefault(originalTimeZone);
        if (originalProvider != null) {
            DBFluteSystem.unlock();

        TimeZone original = TimeZone.getDefault();
        try {
            TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
            ServerMessageBlock.writeUTime(unixTime * 1000L, buffer, 0);
            long readTime = ServerMessageBlock.readUTime(buffer, 0);
            assertEquals(unixTime * 1000L, readTime);
        } finally {
            TimeZone.setDefault(original);
        }
    }

    @Test

     */

    public synchronized static void setDefault(final NtlmAuthenticator a) {
        if (auth != null) {
            return;
        }
        auth = a;
    }

    /**
     * Gets the default NTLM authenticator.
     * @return the default authentication credentials provider
     */
    public static NtlmAuthenticator getDefault() {
        return auth;
    }

    /**

     * @param a the authenticator to set as default
     */

    public synchronized static void setDefault(final NtlmAuthenticator a) {
        if (auth != null) {
            return;
        }
        auth = a;
    }

    /**
     * Gets the URL that is requesting authentication.

        }
      }
    }
  }

  public void testNulls() {
    NullPointerTester tester =
        new NullPointerTester()
            .setDefault(SleepingStopwatch.class, stopwatch)
            .setDefault(int.class, 1)
            .setDefault(double.class, 1.0d);
    tester.testStaticMethods(RateLimiter.class, Visibility.PACKAGE);
    tester.testInstanceMethods(RateLimiter.create(5.0, stopwatch), Visibility.PACKAGE);

        }
      }
    }
  }

  public void testNulls() {
    NullPointerTester tester =
        new NullPointerTester()
            .setDefault(SleepingStopwatch.class, stopwatch)
            .setDefault(int.class, 1)
            .setDefault(double.class, 1.0d);
    tester.testStaticMethods(RateLimiter.class, Visibility.PACKAGE);
    tester.testInstanceMethods(RateLimiter.create(5.0, stopwatch), Visibility.PACKAGE);

  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullPointers() {
    NullPointerTester tester = new NullPointerTester();
    tester.setDefault(int.class, 1);
    tester.setDefault(long.class, 1L);
    tester.testAllPublicStaticMethods(LongMath.class);
  }

  @GwtIncompatible // isPrime is GWT-incompatible
  public void testIsPrimeSmall() {

    return big.bitLength() <= 31;
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullPointers() {
    NullPointerTester tester = new NullPointerTester();
    tester.setDefault(int.class, 1);
    tester.testAllPublicStaticMethods(IntMath.class);
  }

  @GwtIncompatible // isPrime is GWT-incompatible
  public void testIsPrime() {
    // Defer correctness tests to Long.isPrime

    assertNull(tester.instantiate(MyAnnotation.class));
  }

  public void testInstantiate_setDefault() throws Exception {
    NotInstantiable x = new NotInstantiable();
    tester.setDefault(NotInstantiable.class, x);
    assertNotNull(tester.instantiate(ConstructorParameterNotInstantiable.class));
  }

  public void testSetDistinctValues_equalInstances() {
    assertThrows(