*
     * @param iterator
     *            反復子。{@literal null}であってはいけません
     */
    public IteratorEnumeration(final Iterator<T> iterator) {
        assertArgumentNotNull("iterator", iterator);
        this.iterator = iterator;
    }

    /**
     * {@link IteratorEnumeration}を作成します。
     *
     * @param iterable
     *            反復可能なオブジェクト。{@literal null}であってはいけません
     */

 *
 * @author koichik
 */
public abstract class JarInputStreamUtil {

    /**
     * {@link JarInputStream}を作成します。
     *
     * @param is
     *            入力ストリーム。{@literal null}であってはいけません
     * @return {@link JarInputStream}
     * @throws IORuntimeException
     *             {@link IOException}が発生した場合
     * @see JarInputStream#JarInputStream(InputStream)
     */

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

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

    /**
     * @throws Exception
     */
    @Test
    public void testGetMessage() throws Exception {
        final String s = MessageFormatter.getMessage("EMSG0000");
        System.out.println(s);

 */
public class LocaleUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testGetLocale() throws Exception {
        assertEquals("1", LocaleUtil.getDefault(), LocaleUtil.getLocale(null));
        assertEquals("2", Locale.JAPANESE, LocaleUtil.getLocale("ja"));
        assertEquals("3", Locale.JAPAN, LocaleUtil.getLocale("ja_JP"));
    }

        buf.append(cause);
        if (cause instanceof SAXParseException) {
            final SAXParseException e = (SAXParseException) cause;
            if (e.getSystemId() != null) {
                buf.append(" at ").append(e.getSystemId());
            }
            final int lineNumber = e.getLineNumber();
            final int columnNumber = e.getColumnNumber();

    }

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

    /**
     * @throws Exception
     */
    @Test
    public void testToDate_Null() throws Exception {
        assertThat(toDate(null), is(nullValue()));
    }

    /**
     * @throws Exception
     */
    @Test

        assertSame(ObjectUtil.defaultValue(null, hoge), hoge);
        assertSame(ObjectUtil.defaultValue(hoge, null), hoge);
        assertSame(ObjectUtil.defaultValue(hoge, hoge), hoge);
        assertSame(ObjectUtil.defaultValue(null, null), null);
        assertThat(ObjectUtil.defaultValue(null, "NULL"), is("NULL"));
        assertThat(ObjectUtil.defaultValue(null, 1), is(1));

    }

    /**
     * 配列が{@literal null}でも長さが0でもない場合は{@literal true}を返します。
     *
     * @param arrays
     *            配列
     * @return 配列が{@literal null}でも長さが0でもない場合は{@literal true}
     */
    public static boolean isNotEmpty(final short[] arrays) {
        return arrays != null && arrays.length != 0;
    }

    /**

        final String[] emptyArray = new String[0];
        assertThat(ArrayUtil.addAll((Object[]) null, (Object[]) null), is(nullValue()));
        assertThat(ArrayUtil.addAll(null, emptyArray).length, is(0));
        assertThat(ArrayUtil.addAll(emptyArray, null), is(sameInstance(emptyArray)));
        assertThat(ArrayUtil.addAll(emptyArray, null), is(sameInstance(emptyArray)));

     * @return 削除されたエントリ。キーに対応するエントリがなかった場合は{@literal null}
     */
    protected Entry<K, V> removeMap(final Object key) {
        int hashCode = 0;
        int index = 0;

        if (key != null) {
            hashCode = key.hashCode();
            index = (hashCode & 0x7FFFFFFF) % mapTable.length;
            for (Entry<K, V> e = mapTable[index], prev = null; e != null; prev = e, e = e.next) {