TimeZone.setDefault(newTimeZone);

            // Create new provider instance to pick up the new default
            FessUserTimeZoneProcessProvider newProvider = new FessUserTimeZoneProcessProvider();

            // Execute
            TimeZone result = newProvider.getRequestedTimeZone(requestManager);

    /**
     * @throws Exception
     */
    @Before
    public void setUp() throws Exception {
        TimeZone.setDefault(TimeZone.getTimeZone("GMT"));
    }

    /**
     * @throws Exception
     */
    @After
    public void tearDown() throws Exception {
        TimeZone.setDefault(null);
    }

    /**
     * @throws Exception
     */
    @Test

    public static final TimeZone centralTimeZone = TimeZone.getDefault();

    @Override
    public boolean isUseTimeZoneHandling() {
        return false;
    }

    @Override
    public boolean isAcceptCookieTimeZone() {
        return false;
    }

    @Override

      if (format == null) {
        format =
          SimpleDateFormat(BROWSER_COMPATIBLE_DATE_FORMAT_STRINGS[i], Locale.US).apply {
            // Set the timezone to use when interpreting formats that don't have a timezone. GMT is
            // specified by RFC 7231.
            timeZone = UTC
          }
        BROWSER_COMPATIBLE_DATE_FORMATS[i] = format
      }
      position.index = 0
      result = format.parse(this, position)

    }

    protected DfFinalTimeZoneProvider createFinalTimeZoneProvider() {
        return new DfFinalTimeZoneProvider() {
            protected final TimeZone provided = FessUserTimeZoneProcessProvider.centralTimeZone;

            @Override
            public TimeZone provide() {
                return provided;
            }

            @Override
            public String toString() {

  private fun formatDate(date: Date): String? {
    val rfc1123: DateFormat = SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US)
    rfc1123.timeZone = TimeZone.getTimeZone("GMT")
    return rfc1123.format(date)
  }

    public void test_createFinalTimeZoneProvider_withDifferentDefaultTimeZone() {
        // Given
        TimeZone testTimeZone = TimeZone.getTimeZone("America/New_York");
        TimeZone originalDefault = TimeZone.getDefault();

        try {
            // Change default timezone temporarily
            TimeZone.setDefault(testTimeZone);

            // When

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.mylasta.direction.sponsor;

import java.util.TimeZone;

import org.codelibs.fess.mylasta.direction.FessConfig;
import org.lastaflute.core.time.TypicalTimeResourceProvider;

/**
 * The provider of time resource.
 *
 * @author jflute
 */

        assertNotNull(yearProvider);
    }

    // Test timezone information
    public void test_timezoneInformation() {
        TimeZone defaultTz = TimeZone.getDefault();
        assertNotNull(defaultTz);
        assertNotNull(defaultTz.getID());
        assertTrue(defaultTz.getID().length() > 0);

        // Central timezone should match default

import assertk.assertions.isNull
import java.util.Date
import java.util.TimeZone
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test

class HttpDateTest {
  private lateinit var originalDefault: TimeZone

  @BeforeEach
  fun setUp() {
    originalDefault = TimeZone.getDefault()
    // The default timezone should affect none of these tests: HTTP specified GMT, so we set it to