Github user ryeats commented on the issue:
https://github.com/apache/activemq-artemis/pull/1561
Essentially this is copying netty inside the artemis-server-osgi jar
because UnpooledUnsafeDirectByteBufWrapper needs package private access to some
classes in netty. The downside is the manifests in those jars are ignored and
we have to make sure the one in artemis-service-osgi satisfies all of netty's
imports now. i.e. if we update Netty versions and they added a new dependency
we will have to add an exclusion to our Import-Package or install an additional
bundle. Frankly we should probably not be doing something that requires package
private access to Netty but I realize its doing some cool stuff. As for a more
elegant solution I am not sure if this is feasible but possibly contributing a
low level api to Netty so we don't need package private access.
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