Issue with 'withExposedPorts' using multiple ports

addExposedPorts uses an array to set the exposedPorts declared as LinkedHashSet, so it maintains the order of insertions. However, withExposedPorts, uses Lists.newArrayList(ports) which internally calls Collections.addAll(…) which does not maintain the order of insertaion. The result is unexpected behaviour, in particular, an issue when setting the waitingFor strategy.
For instance, say we call: withExposedPorts(8080,1234) and then set waiting strategy as: Wait.forHttp(...) If Collections decides to place 1234 first, then the code will listen using port 1234, instead of 8080.

[ofirgrm]

I assumed there was an order guaranteed since the ports are stored using LinkedHashSet. Using forPort will definitely solve the issue I’m having, so thanks for that! @bsideup, I think adding a line of documentation about it at https://www.testcontainers.org/features/startup_and_waits/ can be very useful.

Thanks.

[ZdrOStiwa]

I just run into the same problem. I don’t think this has been clearly documented. Maybe reopen?