VisualVM unable to sampler memory

Question

I have a tomcat instance with the JMXRemote parameter configured. The local VisualVM is able to get a sampler on CPU, however, not for Memory. The memory button is grayed out wi

Answer 1

And I have the same problem.

I always launched tomcat as a service and connected it with visualvm through jmx connection.

When had corrected catalina.bat:

    set JAVA_OPTS=%JAVA_OPTS% 
    -Dcom.sun.management.jmxremote=true 
    -Dcom.sun.management.jmxremote.port=9090 
    -Dcom.sun.management.jmxremote.ssl=false 
    -Dcom.sun.management.jmxremote.authenticate=false

and launched it with startup.bat, visualvm automatically determine tomcat, and memory sampling was active.