ADDITIONAL SYSTEM INFORMATION :
uname -a
Linux HOSTNAME 3.10.0-693.17.1.el7.x86_64 #1 SMP Thu Jan 25 20:13:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
When I running application with JMX enabled with following options.

java -Dcom.sun.management.jmxremote.port=21100 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.local.ly=true -cp test.jar Test

I can remote JMX from remote.

But according to property document
http://hg.openjdk.java.net/jdk/jdk11/file/1ddf9a99e4ad/src/jdk.management.agent/share/conf/management.properties#l70


com.sun.management.jmxremote.local.only controls connect-ability from remote.
And default value is true.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Compile attached source code into jar.
2. Run jar file with jmx options like

java -Dcom.sun.management.jmxremote.port=21100 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.local.ly=true -cp test.jar Test

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Cannot connect JMX from remote.
ACTUAL -
Can connect JMX from remote. (by JDK Mission Control)

---------- BEGIN SOURCE ----------
public class Test {
    public static void main(String[] args) throws InterruptedException {
        while (true) {
            Thread.sleep(1_000);
        }
    }
}

---------- END SOURCE ----------