Apache Commons Codec - 1.10 The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64, Hexadecimal, Soundex, and various encryption utilities (Crypt, MD5Crypt, Sha2Crypt) Required Libraries commons-codec-1.10.jar Download apache-commons-codec-1.4.jar. apache-commons/apache-commons-codec-1.4.jar.zip( 53 k) The download jar file contains the following class files or Java source Parquet; PARQUET-1194; org.apache.commons.codec.binary.Base64 clash Download org.apache.commons.codec-1.6.jar. org.apache.commons/org.apache.commons.codec-1.6.jar.zip( 190 k) The download jar file contains the following class files or I've added commons-codec-1.4.jar in my project file and also added import org.apache.commons.codec.binary.Base64; But whenever I build it it gives me an error:package org.apache.commons.codec.bi The dependencies package of Base64Tester are not included in jar file. You should use mvn instal from Base64Test project Share Improve this answer answered Oct 17, 2020 at 5:06 Tung Luong Thanh 208 4 7 Add a comment Apache Commons Codec - The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities. This is the 1.15 version of commons-codec. It is available in both binary and source distributions. Note: The tar files in the distribution use GNU tar extensions and must be untarred with a GNU compatible version of tar. The version of tar on Solaris and Mac OS X will not work with these files. org.apache.shiro.codec Class Base64 java.lang.Object org.apache.shiro.codec.Base64. public class Base64 but also didn't want to force every Shiro user to depend on the commons-codec.jar As per the Apache 2.0 license, the original copyright notice and all author and copyright information have remained in tact. Since: 0.9 Base64 class is dependant on commons-codec-1.2.jar Source Code Example The example below shows the sample for Base64 class implementation and usage. Base64Example.java: Output 1 2 3 Encoded Version is VGhpcyBpcyBCYXNlNjQgZW5jb2RpbmcgYW5kIGRlY29kaW5nIGV4YW1wbGU= Decoded version is This is Base64 encoding and decoding example mvn dependency:tree -Dverbose -Dincludes=jar-name-casuing-conflict Depois de identificar a versão Jar que possui essa classe. Você pode resolver adicionando esse jar diretamente em seu projeto pom.xml. ou Você pode excluir o jar que está mais próximo de seu projeto que não tem essa classe e pode apontar para outro jar no projeto. This class was borrowed from Apache Commons Codec SVN repository (rev. 618419) with modifications to enable Base64 conversion without a full dependency on Commons Codec. but also didn't want to force every Shiro user to depend on the commons-codec.jar As per the Apache 2.0 license, Converts the specified UTF-8 Base64 encoded String and This class was borrowed from Apache Commons Codec SVN repository (rev. 618419) with modifications to enable Base64 conversion without a full dependency on Commons Codec. but also didn't want to force every Shiro user to depend on the commons-codec.jar As per the Apache 2.0 license, Converts the specified UTF-8 Base64 encoded String and