* @return {@link Map}
     */
    public static final Map<String, String> convertMap(final ResourceBundle bundle) {
        assertArgumentNotNull("bundle", bundle);

        final Map<String, String> ret = newHashMap();
        for (final Enumeration<String> e = bundle.getKeys(); e.hasMoreElements();) {
            final String key = e.nextElement();
            final String value = bundle.getString(key);
            ret.put(key, value);

        final EmptyIterator<String> emptyIterator = new EmptyIterator<String>();
        emptyIterator.remove();
    }

    /**
     * Test method for
     * {@link org.codelibs.core.collection.EmptyIterator#hasNext()}.
     */
    @Test
    public void testHasNext() {
        final EmptyIterator<String> emptyIterator = new EmptyIterator<String>();
        assertThat(emptyIterator.hasNext(), is(false));

        assertThat(traverser.isExistClass(DummyTest.class.getName()), is(true));
        assertThat(traverser.isExistClass(TestCase.class.getName()), is(not(true)));

        final Set<String> set = new HashSet<String>();
        traverser.forEach((ClassHandler) (packageName, shortClassName) -> set.add(ClassUtil.concatName(packageName, shortClassName)));
        assertThat(set.size() > 0, is(true));

     */
    public static Long toLong(final Object o, final String pattern) {
        if (o == null) {
            return null;
        } else if (o instanceof Long) {
            return (Long) o;
        } else if (o instanceof Number) {
            return ((Number) o).longValue();
        } else if (o instanceof String) {
            return toLong((String) o);
        } else if (o instanceof java.util.Date) {

     */
    @Rule
    public ExpectedException exception = ExpectedException.none();

    /**
     *
     */
    @Test
    public void testNext() {
        final ArrayIterator<String> itr = new ArrayIterator<String>("a", "b", "c");
        assertThat(itr.next(), equalTo("a"));
        assertThat(itr.next(), equalTo("b"));
        assertThat(itr.next(), equalTo("c"));
    }

    /**
     *
     */

import java.util.Set;

/**
 * 大文字小文字を気にしない {@link Set}です。
 *
 * @author higa
 */
public class CaseInsensitiveSet extends AbstractSet<String> implements Set<String>, Serializable {

    static final long serialVersionUID = 0L;

    private transient Map<String, Object> map = new CaseInsensitiveMap<>();

    private static final Object PRESENT = new Object();

    /**
     * {@link CaseInsensitiveSet}を作成します。

    }

    /**
     */
    public static class MyBean {
        /**
         * @return String
         */
        public String foo() {
            return "hoge";
        }

        /**
         * @param arg
         * @return String
         */
        public static String bar(final String arg) {
            return arg;
        }
    }

     * @throws Exception
     */
    @Test
    public void testAll() throws Exception {
        final LruHashMap<String, String> lru = new LruHashMap<String, String>(3);
        lru.put("aaa", "111");
        lru.put("bbb", "222");
        lru.put("ccc", "333");
        assertThat(lru.get("aaa"), is("111"));
        Iterator<String> i = lru.keySet().iterator();
        assertThat(i.next(), is("bbb"));
        assertThat(i.next(), is("ccc"));

     *
     * @param algorithm
     *            アルゴリズム。{@literal null}や空文字列であってはいけません
     * @param text
     *            ハッシュ化する文字列
     * @return ハッシュ化された文字列
     */
    public static String digest(final String algorithm, final String text) {
        assertArgumentNotEmpty("algorithm", algorithm);

        if (text == null) {
            return null;
        }

        final MessageDigest msgDigest = getInstance(algorithm);

    protected final ArrayMap<String, FieldDesc> fieldDescCache = new ArrayMap<>();

    /** {@link ConstructorDesc}の配列 */
    protected final List<ConstructorDesc> constructorDescs = newArrayList();

    /** メソッド名から{@link MethodDesc}配列へのマップ */
    protected final Map<String, MethodDesc[]> methodDescsCache = newHashMap();

    /** 不正なプロパティ名のセット */
    protected final Set<String> invalidPropertyNames = newHashSet();

    /**