I started my (Spring Boot) application with IntelliJ's CPU profiler:
All fine, but now, whenever I start the application (or any Unit test for that matter) without the profiler, IntelliJ's Run tab keeps telling me, that it's running with a profiler:
I'm not sure, if IntelliJ actually does attach a profiler, because the Profile tab is empty. Is this an IntelliJ 2020.3 bug? How can I verify, that no CPU profiler is attached to my process?
When you choose 'Run <app> with CPU Profiler' if you open the "Profiler" tab in the lower tools panel, you'll see the icons for profiler running with a green dot (as active) to the left of the application name, like this (SpringApplication is the name in this case).
Notice here the texts "Profiling" ... and "Duration" ... and a "Stop Profiling..." option:
If you stop that run, you'll see in that same tab that the green dot is not there anymore and the profiling results are shown:
Now, if you run the application without a profiler (just 'Run'), you'll see something like this, which is quite misleading, because it seems the app is running in profiling mode:
But if you navigate to the "Profiler" tab again without stopping the application, you'll see that it's not started -- as it was before as in the first image posted above.
Most probably that misleading text is a bug.
Tested using:
IntelliJ IDEA 2020.3 (Ultimate Edition)
Build #IU-203.5981.155, built on December 1, 2020
Runtime version: 11.0.9+11-b1145.21 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Linux 5.4.0-58-generic