| Package | Description | 
|---|---|
| org.apache.hc.core5.http | Core HTTP transport component APIs. | 
| org.apache.hc.core5.http.config | Core configuration APIs. | 
| org.apache.hc.core5.http.impl.io | Default implementation of HTTP/1.1 transport based on the classic
 (blocking) I/O model. | 
| org.apache.hc.core5.http.impl.nio | Default implementation of HTTP/1.1 transport based on
 the asynchronous (non-blocking) I/O model. | 
| Modifier and Type | Field and Description | 
|---|---|
| static HttpVersion[] | HttpVersion. ALLAll HTTP versions known to HttpCore. | 
| static HttpVersion | HttpVersion. DEFAULTHTTP/1.1 is default | 
| static HttpVersion | HttpVersion. HTTP_0_9HTTP protocol version 0.9 | 
| static HttpVersion | HttpVersion. HTTP_1_0HTTP protocol version 1.0 | 
| static HttpVersion | HttpVersion. HTTP_1_1HTTP protocol version 1.1 | 
| static HttpVersion | HttpVersion. HTTP_2 | 
| static HttpVersion | HttpVersion. HTTP_2_0HTTP protocol version 2.0 | 
| Modifier and Type | Method and Description | 
|---|---|
| static HttpVersion | HttpVersion. get(int major,
   int minor)Gets a specific instance or creates a new one. | 
| Modifier and Type | Method and Description | 
|---|---|
| HttpVersion | Http1Config. getVersion()The effective protocol level expressed by the minor version of HTTP/1.x. | 
| Modifier and Type | Method and Description | 
|---|---|
| Http1Config.Builder | Http1Config.Builder. setVersion(HttpVersion version)Sets the effective HTTP/1.x protocol level (as expressed by the minor version). | 
| Modifier and Type | Method and Description | 
|---|---|
| protected HttpVersion | DefaultHttpRequestWriter. protocolVersion(HttpRequest message)Determines the HTTP protocol version to be communicated to the opposite
 endpoint in the message header. | 
| protected HttpVersion | DefaultHttpResponseWriter. protocolVersion(HttpResponse message)Determines the HTTP protocol version to be communicated to the opposite
 endpoint in the message header. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected HttpVersion | DefaultHttpRequestWriter. protocolVersion(T request)Determines the HTTP protocol version to be communicated to the opposite
 endpoint in the message header. | 
| protected HttpVersion | DefaultHttpResponseWriter. protocolVersion(T request)Determines the HTTP protocol version to be communicated to the opposite
 endpoint in the message header. | 
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