For some reason, the Jolokia agent does not appear to be compatible with the -XX:+PerfDisableSharedMem JVM option.

I'm testing this against Cassandra. When running with the option:

$ java -jar ~/Downloads/jolokia-jvm-1.3.0-agent.jar list
6826   /home/thobbs/Downloads/jolokia-jvm-1.3.0-agent.jar list

And when running without the option (no other changes):

$ java -jar ~/Downloads/jolokia-jvm-1.3.0-agent.jar list
7108   /home/thobbs/Downloads/jolokia-jvm-1.3.0-agent.jar list
6917   org.apache.cassandra.service.CassandraDaemon

Although I don't think it makes a difference, this is my Java version:

java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)