* CharStreams} method returns a singleton writer whose {@code close} method has no effect, while
   * the {@link Writer#nullWriter()} method returns a new instance whose methods throw after the
   * instance is {@link Writer#close() closed}.
   *
   * @since 15.0
   */
  public static Writer nullWriter() {
    return NullWriter.INSTANCE;
  }

  private static final class NullWriter extends Writer {

        @Throws(IOException::class)
        override fun close() {
          if (!cacheRequestClosed &&
            !discard(ExchangeCodec.DISCARD_STREAM_TIMEOUT_MILLIS, MILLISECONDS)
          ) {
            cacheRequestClosed = true
            cacheRequest.abort()
          }
          source.close()
        }
      }

import java.util.Set;

import org.codelibs.fess.crawler.Constants;
import org.codelibs.fess.crawler.entity.RequestData.Method;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for {@link ResponseData}.
 */
public class ResponseDataTest extends PlainTestCase {

    public void test_defaultConstructor() {
        // Test default constructor
        ResponseData data = new ResponseData();
        assertNotNull(data);

        switch (action) {
        case FILE_ACTION_ADDED:
            return DirectoryChangeType.FILE_ADDED;
        case FILE_ACTION_REMOVED:
            return DirectoryChangeType.FILE_REMOVED;
        case FILE_ACTION_MODIFIED:
            return DirectoryChangeType.FILE_MODIFIED;
        case FILE_ACTION_RENAMED_OLD_NAME:
        case FILE_ACTION_RENAMED_NEW_NAME:

                switch (tok) {
                    case "\"":
                        inQuote = !inQuote;
                        if (inQuote) {
                            tokenList = "\"";
                        } else {
                            tokenList = "\" ";
                        }
                        break;
                    case ",":
                        if (tokStarted) {

    switch (unit) {
      case NANOSECONDS:
        return "ns";
      case MICROSECONDS:
        return "\u03bcs"; // μs
      case MILLISECONDS:
        return "ms";
      case SECONDS:
        return "s";
      case MINUTES:
        return "min";
      case HOURS:
        return "h";
      case DAYS:
        return "d";
    }
    throw new AssertionError();

			tx.Statement = db.Statement.clone()
			tx.Statement.DB = tx
		}

		return tx
	}

	return db
}

// Expr returns clause.Expr, which can be used to pass SQL expression as params
func Expr(expr string, args ...interface{}) clause.Expr {
	return clause.Expr{SQL: expr, Vars: args}
}

// SetupJoinTable setup join table schema

import org.mockito.junit.jupiter.MockitoExtension;

@ExtendWith(MockitoExtension.class)
@DisplayName("FileEntry interface contract tests")
class FileEntryTest {

    @Test
    @DisplayName("Mock returns configured values")
    void mockReturnsConfiguredValues() {
        FileEntry mock = mock(FileEntry.class);
        when(mock.getName()).thenReturn("test.txt");
        when(mock.getType()).thenReturn(1);

 */
@GwtCompatible
@SuppressWarnings("serial") // we're overriding default serialization
final class ImmutableEnumMap<K extends Enum<K>, V> extends IteratorBasedImmutableMap<K, V> {
  static <K extends Enum<K>, V> ImmutableMap<K, V> asImmutable(EnumMap<K, V> map) {
    switch (map.size()) {
      case 0:
        return ImmutableMap.of();
      case 1:
        Entry<K, V> entry = getOnlyElement(map.entrySet());

        // Test that multiple close() calls are all ignored
        byte[] data = "Test data".getBytes();
        ByteArrayInputStream underlyingStream = new ByteArrayInputStream(data);
        IgnoreCloseInputStream stream = new IgnoreCloseInputStream(underlyingStream);

        // Multiple close calls should all be ignored
        stream.close();
        stream.close();
        stream.close();