Awesome on Any23 2.2 forthcoming release. I look forward to it and subsequent bump to Nutch.

In the meantime, I was successful to build Any23 from master, then copy the any23 jars into Nutch (master) then reference them in the plugin…
    <library name="apache-any23-api-2.3-SNAPSHOT.jar"/>
    <library name="apache-any23-core-2.3-SNAPSHOT.jar"/>
    <library name="apache-any23-csvutils-2.3-SNAPSHOT.jar"/>
    <library name="apache-any23-encoding-2.3-SNAPSHOT.jar"/>
    <library name="apache-any23-mime-2.3-SNAPSHOT.jar"/>

Unfortunately when I reran the nutch parsechecker it failed to parse anymore. A quick look at the logs/hadoop.log reveal that updated any23 depends on new classes in the other jar files:
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/rdf/api/IRI
Caused by: java.lang.NoClassDefFoundError: Could not initialize class
java.util.concurrent.ExecutionException: java.lang.NoSuchMethodError:;Lorg/jsoup/nodes/Node;)V

I guess I would need to rebuild nutch from master (rather than just copy a few jar files) and ensure that any23’s jar dependencies as also references..