The new jar dependency analyzer detects unsatisfied dependencies in a profile build with JFR disabled:

Analyzing /export/users/dh198349/jdk8-build/build/b77c/linux-i586-ea/images/j2re-compact3-image/lib/management-agent.jar
Analyzing /export/users/dh198349/jdk8-build/build/b77c/linux-i586-ea/images/j2re-compact3-image/lib/jce.jar
Analyzing /export/users/dh198349/jdk8-build/build/b77c/linux-i586-ea/images/j2re-compact3-image/lib/resources.jar
Analyzing /export/users/dh198349/jdk8-build/build/b77c/linux-i586-ea/images/j2re-compact3-image/lib/jsse.jar
Analyzing /export/users/dh198349/jdk8-build/build/b77c/linux-i586-ea/images/j2re-compact3-image/lib/rt.jar
Analyzing /export/users/dh198349/jdk8-build/build/b77c/linux-i586-ea/images/j2re-compact3-image/lib/tzdb.jar
com.sun.management.MissionControl -> com.oracle.jrockit.jfr.management.FlightRecorderMBean (unknown type)
com.sun.management.MissionControl -> com.oracle.jrockit.jfr.FlightRecorder (unknown type)
One or more unexpected references encountered
Check /export/users/dh198349/jdk8-build/build/b77c/linux-i586-ea/jdk/btclasses/build/tools/deps/refs.allowed is up to date

Fix is to add these two entries to ref.allowed