Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Vivek Yadav, an engineering manager from ...

Java’s answer to provide developers the ability to design and implement extensible applications without modifying the original code base came in the form of services and the ServiceLoader ...

All ssems good right? Actually, when you ask to Java Service Loader first Printer and then Scanner, even if you have a sigle implementation for both interfaces, you will get two different instances.

A service is a well-known set of interfaces and (usually abstract) classes. A service provider is a specific implementation of a service. The classes in a provider typically implement the interfaces ...