We currently require a JDK for access to the 'com.sun.tools.attach' package which is required by org.opennms.core/org.opennms.core.daemon on which the "discoverer" feature depends.
We don't actually need this class, so we should break up the dependencies accordingly.
Once we no longer need the JDK to run, we need to:
1) Modify the package spec to depend on a JRE instead of a JDK
2) Remove the custom jre.properties we bundle with the container