commons-codec-1.11.jar - Apache Commons Codec

commons-codec-1.11.jar is the JAR file for Apache Commons Codec 1.11, which provides implementations of common encoders and decoders such as Base64, Hex, Phonetic and URLs.

JAR File Size and Download Location:

JAR name: commons-codec.jar
Target JDK version: 1.8
Dependency: None
File name: commons-codec-1.11.jar
File size: 335,042 bytes
Date modified: 10/17/2017 
Download: Apache Commons Codec

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 * 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 distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.commons.codec.binary;

 * <p>
 * Operations on {@link CharSequence} that are <code>null</code> safe.
 * </p>
 * <p>
 * Copied from Apache Commons Lang r1586295 on April 10, 2014 (day of 3.3.2 release).
 * </p>
 * @see CharSequence
 * @since 1.10
public class CharSequenceUtils {

     * Green implementation of regionMatches.
     * @param cs
     *            the <code>CharSequence</code> to be processed
     * @param ignoreCase
     *            whether or not to be case insensitive
     * @param thisStart
     *            the index to start on the <code>cs</code> CharSequence
     * @param substring
     *            the <code>CharSequence</code> to be looked for
     * @param start
     *            the index to start on the <code>substring</code> CharSequence
     * @param length
     *            character length of the region
     * @return whether the region matched
    static boolean regionMatches(final CharSequence cs, final boolean ignoreCase, final int thisStart,
            final CharSequence substring, final int start, final int length) {
        if (cs instanceof String && substring instanceof String) {
            return ((String) cs).regionMatches(ignoreCase, thisStart, (String) substring, start, length);
        int index1 = thisStart;
        int index2 = start;
        int tmpLen = length;

        while (tmpLen-- > 0) {
            final char c1 = cs.charAt(index1++);
            final char c2 = substring.charAt(index2++);

            if (c1 == c2) {

            if (!ignoreCase) {
                return false;

            // The same check as in String.regionMatches():
            if (Character.toUpperCase(c1) != Character.toUpperCase(c2) &&
                    Character.toLowerCase(c1) != Character.toLowerCase(c2)) {
                return false;

        return true;



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