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Packages that use Registered 
| Package | Description |  
| jdk.jfr | This package contains classes to create events and control Flight Recorder. |  
 
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Classes in jdk.jfr with annotations of type Registered 
| Modifier and Type | Class | Description |  
| class  | Event | Base class for events, to be subclassed in order to define events and their
 fields. |