ConsoleAppender's JANSI native support (withJansi) do not work after Jansi migration from FuseSource to JLine

[NilsRenaud]

The Jansi project has been migrated from https://github.com/fusesource/jansi to https://github.com/jline/jline3/blob/master/jansi/ unfortunately updating the package names.
This package name update breaks ConsoleAppender's native support of JANSI (<withJansi>) resulting on this warning log message:

11:25:00,427 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - Failed to create AnsiPrintStream. Falling back on the default stream. java.lang.ClassNotFoundException: org.fusesource.jansi.AnsiConsole
        at java.lang.ClassNotFoundException: org.fusesource.jansi.AnsiConsole
        at      at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
        at      at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at      at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
        at      at ch.qos.logback.core.ConsoleAppender.wrapWithJansi(ConsoleAppender.java:117)
        at      at ch.qos.logback.core.ConsoleAppender.start(ConsoleAppender.java:99)
        at      at ch.qos.logback.core.model.processor.AppenderModelHandler.postHandle(AppenderModelHandler.java:85)
        at      at ch.qos.logback.core.model.processor.DefaultProcessor.secondPhaseTraverse(DefaultProcessor.java:260)
        at      at ch.qos.logback.core.model.processor.DefaultProcessor.secondPhaseTraverse(DefaultProcessor.java:256)
        at      at ch.qos.logback.core.model.processor.DefaultProcessor.traversalLoop(DefaultProcessor.java:88)
        at      at ch.qos.logback.core.model.processor.DefaultProcessor.process(DefaultProcessor.java:104)
        at      at ch.qos.logback.core.joran.GenericXMLConfigurator.processModel(GenericXMLConfigurator.java:239)
        at      at ch.qos.logback.core.joran.GenericXMLConfigurator.doConfigure(GenericXMLConfigurator.java:195)
        at      at ch.qos.logback.core.joran.GenericXMLConfigurator.doConfigure(GenericXMLConfigurator.java:139)
        at      at ch.qos.logback.core.joran.GenericXMLConfigurator.doConfigure(GenericXMLConfigurator.java:76)

cc @gnodet (JANSI maintainer)

[gnodet]

One possibility would be to try the new class name and fall back to the old one ?