from: rcomp-mail
to: rcomp-api
evidence:
 - file: "rcomp-mail/src/main/java/org/apache/karaf/rcomp/mail/MailComponent.java"
   contains "import org.apache.karaf.rcomp.api.CloseableSubscriber;"

from: rcomp-mail
to: rcomp-api
evidence:
 - file: "rcomp-mail/src/main/java/org/apache/karaf/rcomp/mail/MailDestination.java"
   contains "import org.apache.karaf.rcomp.api.CloseableSubscriber;"