| Package | Description | 
|---|---|
| org.springframework.core | Provides basic classes for exception handling and version detection,
 and other core helpers that are not specific to any part of the framework. | 
| Modifier and Type | Method and Description | 
|---|---|
| static ReactiveAdapterRegistry | ReactiveAdapterRegistry. getSharedInstance()Return a shared default  ReactiveAdapterRegistryinstance,
 lazily building it once needed. |