| Package | Description | 
|---|---|
| org.apache.hc.client5.http.impl.async | Asynchronous HTTP client API implementation that supports both
 HTTP/2 and HTTP/1.1 transport. | 
| org.apache.hc.client5.http.impl.nio | Client connection management functions based the asynchronous
 connection management APIs. | 
| org.apache.hc.client5.http.nio | Connection management APIs based on the asynchronous I/O model. | 
| Class and Description | 
|---|
| AsyncClientConnectionManager Represents a manager of persistent non-blocking client connections. | 
| Class and Description | 
|---|
| AsyncClientConnectionManager Represents a manager of persistent non-blocking client connections. | 
| AsyncClientConnectionOperator Connection operator that performs connection connect and upgrade operations. | 
| AsyncConnectionEndpoint Client connection endpoint that can be used to execute message exchanges. | 
| ManagedAsyncClientConnection Represents a managed asynchronous connection whose state and life cycle
 is managed by a connection manager. | 
| Class and Description | 
|---|
| AsyncConnectionEndpoint Client connection endpoint that can be used to execute message exchanges. | 
| ManagedAsyncClientConnection Represents a managed asynchronous connection whose state and life cycle
 is managed by a connection manager. | 
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