Stepping in debugger switches to interpretation mode

[Severin Gehwolf]

On Fri, 2024-05-31 at 14:44 +0200, Maksim Zuev wrote:
> Dear Sir/Madam,
> 
> I encountered a problem while debugging the code. I am attaching the
> reproducer to this email in the Main.java file. 
> 
> When running it with the debugger without stepping, the application
> runs in less than a second (see jdb output in the jdb_run.txt file).
> However, after performing a single step, the application is running
> in interpretation mode, becoming very slow (see jdb output in the
> jdb_step.txt file).
> 
> I assume running in the interpreter mode, as I
> see InterpreterRuntime::post_method_exit
> calls in the profiler.
> 
> Could you please help me figure out what causes the application to
> run in the interpreter mode? Is this a bug or an expected behavior?
> Are there any ways to work around this issue?

I think this is:
https://bugs.openjdk.org/browse/JDK-8229012

Thanks,
Severin