JProfiler remote process list empty after selecting container

Question

I'm using JProfiler 12 and trying to attach via SSH to a remote JVM process in a Docker container. I've followed the instructions here: https://www.ej-technologies.com/products/jprofiler/whatsnew12.html#:~:text=Attaching%20to%20JVMs%20running

Everything is working well until I have to choose the process. The list is empty. There's no error message.

I can't find any such issue anywhere. I found someone else who had folder permission problems but that cannot be my issue since I'm connecting as root. Even when I chmod folder permissions to 777, it still does nothing.

This is what I get:

This is what I should get:

[UPDATE 1 Oct 2021]

One problem is I was using a Kubernetes pod securityContext with readOnlyRootFilesystem, allowPrivilegeEscalation, and dropping some capabilities. When I remove those, I can see the process. But then when I click Open, it fails with this error:

Which seems to indicate that I was using the wrong user (root). But when I switch to that user, I get this error before I can even choose the container:

So now I'm stuck one step earlier.

Answer 1

I figured out a workaround.

It turns out when you use

securityContext:
  readOnlyRootFilesystem: true
  allowPrivilegeEscalation: false
  capabilities:
    drop:
      - <...capabilities...

and

spec:
  securityContext:
    runAsUser: <user id>
    runAsGroup: <group id>
    fsGroup: <id>

then JProfiler can't connect to your container. So get rid of all this. You can even do it at runtime without having to rebuild your container image by editing your Kubernetes deployment kubectl edit deployment to remove these items.