commons-collections4-4.4-sources.jar - Apache Commons Collections

commons-collections4-4.4-sources.jar is the source JAR file for Apache Commons Collections 4.2, which provides additional collection handling functionalities on top of JDK library.

JAR File Size and Download Location:

JAR name: commons-collections4-4.4-sources.jar
Target JDK version: 8
Dependency: None
File size: 715,541 bytes
Release date: 05-Jul-2019
Download: Apache Commons Collections



 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * Unless required by applicable law
 * or agreed to in writing, software distributed under the License is
 * KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
package org.apache.commons.collections4.iterators;

import java.util.Iterator;

 * Decorates another iterator to skip the first N elements.
 * <p>
 * In case an offset parameter other than 0 is provided, the decorated
 * iterator is immediately advanced to this position, skipping all elements
 * before that position.
 * </p>
 * @since 4.1
public class SkippingIterator<E> extends AbstractIteratorDecorator<E> {

    /** The offset to bound the first element return */
    private final long offset;

    /** The position of the current element */
    private long pos;


     * Decorates the specified iterator to skip all elements until the iterator
     * reaches the position at {@code offset}.
     * <p>
     * The iterator is immediately advanced until it reaches the position at {@code offset},
     * incurring O(n) time.
     * @param iterator  the iterator to be decorated
     * @param offset  the index of the first element of the decorated iterator to return
     * @throws NullPointerException if iterator is null
     * @throws IllegalArgumentException if offset is negative
    public SkippingIterator(final Iterator<E> iterator, final long offset) {

        if (offset < 0) {
            throw new IllegalArgumentException("Offset parameter must not be negative.");

        this.offset = offset;
        this.pos = 0;

     * Skips the given number of elements.
    private void init() {
        while (pos < offset && hasNext()) {


    public E next() {
        final E next =;
        return next;

     * {@inheritDoc}
     * <p>
     * In case an offset other than 0 was specified, the underlying iterator will be advanced
     * to this position upon creation. A call to {@link #remove()} will still result in an
     * {@link IllegalStateException} if no explicit call to {@link #next()} has been made prior
     * to calling {@link #remove()}.
    public void remove() {
        if (pos <= offset) {
            throw new IllegalStateException("remove() can not be called before calling next()");




Or download all of them as a single archive file:

File name: commons-collections4-4.4-sources.jar
File size: 715541 bytes
Release date: 2019-07-05


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