You can use the code from these repositories to experiment, test, build, create patches, issue pull requests, etc.
https://github.com/eclipse-ee4j/grizzly - Project repository hosted on GitHub.
https://github.com/eclipse-ee4j/grizzly-thrift - Project repository hosted on GitHub.
https://github.com/eclipse-ee4j/grizzly-memcached - Project repository hosted on GitHub.
https://github.com/eclipse-ee4j/grizzly-npn - Project repository hosted on GitHub.
https://github.com/eclipse-ee4j/grizzly-ahc - Project repository hosted on GitHub.