This repository contains a JUnit test class JOptCommandLinePropertySourceTest that demonstrates that the implementation of Spring's JOptCommandLinePropertySource selects the option alias names enumerated by getPropertyNames() in an inconsistent way. The test class also shows different property name enumeration strategies that, in the author's opinion, produce more helpful results.

The Spring Boot application WrongPropertyNameDemoApplication demonstrates how command line arguments processed by JOpt can be injected into the environment of a Spring Boot application (and thus be referenced in @Configuration classes).