Random java.util.ConcurrentModificationException

[clemstoquart]

Hi,

First, thanks for your work on this plugin, it's a huge improvement for all maven users.

Unfortunately, after I've added the plugin to my Spring Boot project some random java.util.ConcurrentModificationException start happening during test execution.

My env :

• Spring Boot 2.5
• JDK 11.0.11
• Maven 3.8.1

[zeldigas]

@clemstoquart thanks for the report! Could you please provide some more details:

1. Parts of stack traces (you can drop packages that are related to your application, I think just junit and rt-logs packages are fine)
2. Do you use parallel module build or parallel tests execution in same maven module?

Of course ideally would be to have some sample project that can reproduce problem, but I hope we can start investigation by having 2 items from the list above

[zeldigas]

@clemstoquart any updates?

[clemstoquart]

Hello,

Sorry for the delay I was on holiday.

1. I don't have logs right now, I'll try to get them during the next week.
2. Nope, nothing fancy.

Unfortunately, the project isn't open source so I can't share code.

[clemstoquart]

Hi,

I don't think logs will help. There's literally only some java.util.ConcurrentModificationException printed.

[zeldigas]

I see. Let me check what I can do. I'll check error logging and can make some SNAPSHOT version with extra info. ETA - this weekend. вт, 15 июн. 2021 г. в 12:50, Clément Stoquart ***@***.***>:

…

Hi, I don't think logs will help. There's literally only some java.util.ConcurrentModificationException printed. — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <#3 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAFXCIQHNJYGT3WKHQKJD6TTS4O5PANCNFSM46CPIVKA> .

-- С уважением, Дмитрий Павлов

[zeldigas]

@clemstoquart I did not have time to dig into more details yet, but I suspect this is somehow related to concurrent test execution. May I ask you to run tests with RTLOGS_DEBUG=true env variable (or rtlogs.debug=true system property)? This should generate some additional stdout information, that might reveal the place of problem.
Thanks in advance.