@Override
    public String getUserDomain () {
        if ( this.realm == null && this.getSubject() != null ) {
            Set<Principal> pr = this.getSubject().getPrincipals();
            for ( Iterator<Principal> ite = pr.iterator(); ite.hasNext(); ) {
                try {
                    KerberosPrincipal entry = (KerberosPrincipal) ite.next();
                    return entry.getRealm();
                }

            }
        }
        return new String(buf);
    }

    /**
     * ロケールが持つスタイルに対応する{@link DateFormat}を反復する{@link Iterator}です。
     *
     * @author koichik
     */
    protected static class DateFormatIterator implements Iterator<DateFormat> {

        /** ロケール */
        protected final Locale locale;

        /** 現在のスタイルを示すインデックス */
        protected int index;

                // care performance for List that the most frequent pattern
                final Object first = coll instanceof List<?> ? ((List<?>) coll).get(0) : coll.iterator().next();
                if (first instanceof Entity) {
                    data.register(key, coll.stream().map(BeanUtil::copyBeanToNewMap).collect(Collectors.toList()));
                    return;
                }

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotEmpty;
import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

import java.io.File;
import java.net.URL;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.concurrent.ConcurrentMap;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

        }
        catch ( IOException ioe ) {
            log.debug("doNetShareEnum failed", ioe);
            throw new SmbException(u.toString(), ioe);
        }
        return new ShareEnumIterator(parent, set.iterator(), ff);
    }


    @SuppressWarnings ( "resource" )
    static CloseableIterator<SmbResource> doEnum ( SmbFile parent, String wildcard, int searchAttributes, ResourceNameFilter fnf, ResourceFilter ff )

        start = System.currentTimeMillis();
        for (Iterator<Map.Entry<String, Object>> i = hmap.entrySet().iterator(); i.hasNext();) {
            i.next();
        }
        System.out.println("HashMap iteration:" + (System.currentTimeMillis() - start));

        start = System.currentTimeMillis();
        for (Iterator<Map.Entry<String, Object>> i = amap.entrySet().iterator(); i.hasNext();) {
            i.next();
        }

        assertThat(lru.get("aaa"), is("111"));
        Iterator<String> i = lru.keySet().iterator();
        assertThat(i.next(), is("bbb"));
        assertThat(i.next(), is("ccc"));
        assertThat(i.next(), is("aaa"));
        lru.put("ddd", "444");
        assertThat(lru.size(), is(3));
        assertThat(lru.get("bbb"), is(nullValue()));
        i = lru.keySet().iterator();
        assertThat(i.next(), is("ccc"));

 */
package org.codelibs.core.collection;

import java.util.Iterator;

import org.codelibs.core.exception.ClUnsupportedOperationException;

/**
 * 空の {@link Iterator}です。
 *
 * @author higa
 * @param <T>
 *            反復する要素の型
 */
public class EmptyIterator<T> implements Iterator<T> {

    /**
     * {@link EmptyIterator}を作成します。
     */
    public EmptyIterator() {
    }

            return options.get(key);
        return null;
    }

    public String toString() {
        String ret = proto + ":" + server + "[" + endpoint;
        if (options != null) {
            Iterator iter = options.keySet().iterator();
            while (iter.hasNext()) {
                Object key = iter.next();
                Object val = options.get(key);
                ret += "," + key + "=" + val;
            }
        }

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs;


import java.util.Iterator;


/**
 * @author mbechler
 * @param <T>
 *
 */
public interface CloseableIterator <T> extends Iterator<T>, AutoCloseable {

    /**
     * {@inheritDoc}
     *
     * @see java.lang.AutoCloseable#close()
     */
    @Override