| Interface | Description | 
|---|---|
| ServiceDefinition<T> | A service that may or may not be present on the classpath. | 
| Class | Description | 
|---|---|
| SoftServiceLoader<S> | Variation of  ServiceLoaderthat allows soft loading and conditional loading of
 META-INF/services classes. | 
| StreamSoftServiceLoader | Variation of  SoftServiceLoaderthat returns a stream instead of an iterable thus allowing parallel loading etc. |