private static class IndexedIterator<E extends @Nullable Object> {
      final PeekingIterator<E> iterator;
      final int index;

      IndexedIterator(PeekingIterator<E> iterator, int index) {
        this.iterator = iterator;
        this.index = index;
      }
    }

    final Queue<IndexedIterator<T>> queue;

    MergingIterator(

    private static class IndexedIterator<E extends @Nullable Object> {
      final PeekingIterator<E> iterator;
      final int index;

      IndexedIterator(PeekingIterator<E> iterator, int index) {
        this.iterator = iterator;
        this.index = index;
      }
    }

    final Queue<IndexedIterator<T>> queue;

    MergingIterator(

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.beans.factory;

import static org.codelibs.core.collection.ArrayIterator.iterable;
import static org.codelibs.core.collection.IndexedIterator.indexed;
import static org.codelibs.core.lang.GenericsUtil.getActualClass;
import static org.codelibs.core.lang.GenericsUtil.getGenericParameters;
import static org.codelibs.core.lang.GenericsUtil.getTypeVariableMap;