Warning "Unexpected JVM command line syntax" when passing command line arguments containing slashes to instrumented application

[zimmi]

Describe the bug

The Boostrap-Check in https://github.com/elastic/apm-agent-java/blob/main/elastic-apm-agent-premain/src/main/java/co/elastic/apm/agent/premain/JvmToolBootstrapCheck.java#L63 logs a warning when command line arguments containing slashes are passed to the main method:

[elastic-apm-agent] WARN Unexpected JVM command line syntax: org.example.Main --file /my/path/containing/slashes/file.txt

Steps to reproduce

Pass command line args containing slashes to an instrumented application.

Expected behavior

No warning is logged.

Debug logs

See above.

[jackshirazi]

Thanks for raising this

[blaspat]

Hi,

I'd like to work on this. The fix looks straightforward — updating the regex pattern in JvmToolBootstrapCheck.java to properly handle paths with slashes.

I'll go ahead and prepare a PR if that's okay.