Reading FedWiki pages from Java.
Ward encourages others to make their own client and report back how it works for them. matrix 
He maintains a java version that has test cases that you may want to try. repository
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Compact language implementations are increasingly popular for use in resource constrained environments. For embedded applications such as robotics and home automation, it is useful to support a Read-Eval-Print-Loop (REPL) so that a basic level of interactive development is possible directly on the device.
> […] until the addition of jshell, the REPL is not a traditional Java feature.
JShell. wikipedia