Stefan Birkner

Your description does not contain enough information for providing you help. Can you show me the code that writes to `System.err`.

I think that Logback gets a reference to the original `System.err` in the beginning and therefore still writes to the original `System.err` and not the one that is monitored by...

@toli-belo Can you please provide a minimal example/test that shows the problem.

I think this is because junit:junit-dep 4.11-beta-1 is the first release that relocates to junit:junit. It looks like being a Maven bug. Hopefully I find the bug.

Did you encounter any problems with JUnit 4.11-beta-1 or is it "only" a "hygiene concern".

I know, but I like to understand your problem. Do you "only" want no snapshot dependencies or do you have a more serious problem?

Does this work with System Rules 1.17.2 **and** JUnit Lambda (JUnit 5)?

I have a look at this.

I try to find a better solution by using `PipedInputStream`.

`TextFromStandardInputStream` isn't blocking because it is designed for automated tests that run in a single thread. If `TextFromStandardInputStream` blocks then the test itself blocks. I could imagine how to implement...