io.cucumber.core.options.CucumberPropertiesParser pulls in many of the required arguments from various sources e.g. a properties file, environment or system properties

However, it appears to not be looking for number of threads to use (--threads via CLI) - was this intentional?

👓 What did you see?

Having setup multiple scenarios, and having added cucumber.execution.threads=2 to properties file I expected tests to run in parallel

✅ What did you expect to see?

cucumber.execution.threads should be parsed and utilised

📦 Which tool/library version are you using?

cucumber-core 7.14.1

🔬 How could we reproduce it?

Create multiple scenarios
Create cucumber.properties with the normal required values (e.g. glue, features and plugin)
Ensure within the properties file you add cucumber.exeution.threads=2
Run cucumber

You will see all tests are executed synchronously and the timeline report also confirms this