Why was org.apache.common.lang3 StringEscapeUtils deprecated?

Per the deprecation listing, it was moved to a new project -- commons-text

The class was moved from package

org.apache.commons.lang3

to

org.apache.commons.text

You can replace the deprecated library easily:

In your build.gradle:

implementation 'org.apache.commons:commons-text:1.9'

And in your class using StringEscapeUtils make sure you import the correct class:

import org.apache.commons.text.StringEscapeUtils;

1.9 is currently the newest version (last checked February 24th 2021) but you can check the versions at maven: https://mvnrepository.com/artifact/org.apache.commons/commons-text