Base64 Encoding and Decoding in Java

<dependency>
    <groupId>commons-codec</groupId>
    <artifactId>commons-codec</artifactId>
    <version>1.10</version>
</dependency>

String originalInput = "test input";
String encodedString = new String(Base64.encodeBase64(originalInput.getBytes()));
String decodedString = new String(Base64.decodeBase64(encodedString.getBytes()));

References
https://www.baeldung.com/java-base64-encode-and-decode
https://www.base64encode.org/
https://www.base64decode.org/