in src/main/java/org/apache/maven/doxia/DefaultConverter.java [260:267]
public SinkFactory getSinkFactory(PlexusContainer plexus) throws ComponentLookupException {
if (!hasSink) {
throw new IllegalStateException("The format " + this + " is not supported as sink!");
}
Objects.requireNonNull(plexus, "plexus is required");
return plexus.lookup(SinkFactory.class, roleHint);
}