wohu233

[ISSUE] In the showcase of Java Service Provider Interface , command line output is empty

1

https://github.com/eugenp/tutorials/tree/master/core-java-modules/java-spi ### Steps to Reproduce Run this command in root of the java-spi module , the command line output is empty. ``` java -cp "D:\java-spi\exchange-rate-api\target\exchange-rate-api-1.0.0-SNAPSHOT.jar;D:\java-spi\exchange-rate-app\target\exchange-rate-app-1.0 .0-SNAPSHOT.jar;D:\java-spi\exchange-rate-impl\target\exchange-rate-impl-1.0.0-SNAPSHOT.jar;D:\java-spi\exchange-rate-impl\target\depends\*" com.baeldung.rate.app.MainApp ``` ### Expected...