| Name | Description | Type | Package | Framework |
| DateParseException | An exception to indicate an error parsing a date string. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| DateParser | A utility class for parsing HTTP dates as used in cookies and other headers. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| DateUtil | A utility class for parsing and formatting HTTP dates as used in cookies and other headers. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| EncodingUtil | The home for utility methods that handle various encoding tasks. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| ExceptionUtil | The home for utility methods that handle various exception-related tasks. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| HttpURLConnection | Provides a HttpURLConnection wrapper around HttpClient's HttpMethod. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| IdleConnectionHandler | A helper class for connection managers to track idle connections. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| IdleConnectionTimeoutThread | A utility class for periodically closing idle connections. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| LangUtils | A set of utility methods to help produce consistent Object#equals(Object) and Object#hashCode methods. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| ParameterFormatter | This formatter produces a textual representation of attribute/value pairs. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| ParameterParser | A simple parser intended to parse sequences of name/value pairs. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| TimeoutController | Executes a task with a specified timeout. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| TimeoutController .TimeoutException | Signals that the task timed out. | Class | org.apache.commons.httpclient.util.TimeoutController | Apache HttpClient |
| URIUtil | The URI escape and character encoding and decoding utility. | Class | org.apache.commons.httpclient.util | Apache HttpClient |
| URIUtil .Coder | The basic and internal utility for URI escape and character encoding andSee Also:Serialized Form | Class | org.apache.commons.httpclient.util.URIUtil | Apache HttpClient |