VisualVM “not supported for this JVM” on all local applications?

Question

I have already spent a long time to load and test my application, now I need to profile it. But unluckily, the VisualVM always says \"not supported for this JVM\" on my loca

Answer 1

I too got the same problem for local tomcat, I search for solutions for stackoverflow. after some serious debugging, I figured out that VisualGC don't have permissions to get GC informations from tool.jar file.

by links

http://docs.oracle.com/javase/7/docs/technotes/tools/share/jstatd.html#SECURITY https://stackoverflow.com/a/42107355/3876619

I following steps to solve the issue

1) Create a permission file

vim /tmp/tools.policy

Add

grant codebase "file:${java.home}/../lib/tools.jar" {
   permission java.security.AllPermission;
};

save it

2) Now add /tmp/tools.policy to JVM startup parameters

-Djava.security.policy=/tmp/tools.policy

3) Run jvisualVm with sudo