| Name | Description | Type | Package | Framework |
| Header | Class for describing an HTTP header. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| Request | An HTTP request that is waiting for a response. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| Request .RequestImpl | Class | com.google.gwt.http.client.Request | Google WebToolkit (GWT) | |
| Request .RequestImplIE8And9 | Class | com.google.gwt.http.client.Request | Google WebToolkit (GWT) | |
| RequestBuilder | Builder for constructing Request objects. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| RequestBuilder .Method | HTTP request method constants. | Class | com.google.gwt.http.client.RequestBuilder | Google WebToolkit (GWT) |
| RequestCallback | The primary interface a caller must implement to receive a response to a Modules that use this interface should inherit | Interface | com.google.gwt.http.client | Google WebToolkit (GWT) |
| RequestException | RequestException is the superclass for the HTTP request related exceptions. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| RequestPermissionException | Exception thrown when the RequestBuilder attempts to make a request to a URL which violates the Same-Origin Security | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| RequestTimeoutException | Thrown to indicate that an HTTP request has timed out. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| Response | Wrapper which provides access to the components of an HTTP response. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| ResponseImpl | Class | com.google.gwt.http.client | Google WebToolkit (GWT) | |
| StringValidator | Class | com.google.gwt.http.client | Google WebToolkit (GWT) | |
| URL | Utility class for the encoding and decoding URLs in their entirety or by their individual components. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| UrlBuilder | Utility class to build a URL from components. | Class | com.google.gwt.http.client | Google WebToolkit (GWT) |
| RequestBuilder | Builder for constructing Request objects. | Class | com.google.gwt.http.client | OpenCMS |
| RequestBuilder .Method | HTTP request method constants. | Class | com.google.gwt.http.client | OpenCMS |