The Apache Sling javax.activation bundle contributes an OSGi-compatible activation bundle.
'org.apache.sling:org.apache.sling.javax.activation:0.1.0'
<dependency>
<groupId>org.apache.sling</groupId>
<artifactId>org.apache.sling.javax.activation</artifactId>
<version>0.1.0</version>
</dependency>
<dependency org="org.apache.sling" name="org.apache.sling.javax.activation" rev="0.1.0"/>
"org.apache.sling", "org.apache.sling.javax.activation", "0.1.0"