EPL-licensed extensions for extra2: https://github.com/solf/extra2
See extra2 project for overall description.
This project also automatically includes dependency with null-annotations intended for Eclipse's null-analysis: https://github.com/solf/nullanno
Project is intended for use with Maven:
<dependency>
<groupId>io.github.solf</groupId>
<artifactId>extra2-epl</artifactId>
<version>${VERSION}</version>
</dependency>
(replace version reference with any available versions from here: https://repo.maven.apache.org/maven2/io/github/solf/extra2-epl/ )