public Set<T> asSet() {
    return Collections.emptySet();
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    checkNotNull(function);
    return Optional.absent();
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    return this == obj;
  }

  @Override
  public int hashCode() {
    return 0x79a31aac;
  }

  @Override
  public String toString() {

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

     *
     * @return true if the item is marked for deletion, false otherwise.
     */
    public boolean isDeleted() {
        return isUpdated() && newInput.length() == 0;
    }

    @Override
    public int hashCode() {
        return java.util.Objects.hashCode(input);
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }

    public static final String URL = "url";

    /** File passwords key for metadata */
    public static final String FILE_PASSWORDS = "file.passwords";

    /** Map containing metadata key-value pairs */
    protected Map<String, String[]> metadata = new HashMap<>();

    /** The extracted content text */
    protected String content;

    /**
     * Constructs a new ExtractData.
     */
    public ExtractData() {

    /**
     * <code>java.io.tmpdir</code> system property. Example: /tmp
     */
    public static final String JAVA_IO_TMPDIR = System.getProperty("java.io.tmpdir");

    /**
     * <code>user.dir</code> system property.
     */
    public static final String USER_DIR = System.getProperty("user.dir");

    /**
     * <code>user.home</code> system property.
     */

/**
 * Converter for SQL dates.
 *
 * @author higa
 */
public class SqlDateConverter implements Converter {

    /**
     * The date pattern.
     */
    protected String pattern;

    /**
     * Constructs an instance.
     *
     * @param pattern
     *            the date pattern
     */
    public SqlDateConverter(final String pattern) {
        assertArgumentNotEmpty("pattern", pattern);

/**
 * @author wyukawa
 *
 */
public class NullArgumentExceptionTest {

    @Before
    public void setUp() throws Exception {
        LocaleUtil.setDefault(() -> Locale.JAPANESE);
    }

    @After
    public void tearDown() throws Exception {
        LocaleUtil.setDefault(null);
    }

    /**
     * @throws Exception
     */
    @Test
    public void testErrorMessage_ja() throws Exception {

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

/**
 * TODO: javadoc.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public abstract class TestStringListGenerator implements TestListGenerator<String> {
  @Override
  public SampleElements<String> samples() {
    return new Strings();
  }

  @Override
  public List<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;

import org.jline.console.CommandRegistry;

import static java.util.Objects.requireNonNull;

public class ShellCommandRegistryHolder implements AutoCloseable {
    private final List<CommandRegistry> commandRegistries;

    public ShellCommandRegistryHolder() {
        this.commandRegistries = new ArrayList<>();
    }

    public void addCommandRegistry(CommandRegistry commandRegistry) {