| Name | Description | Type | Package | Framework |
| AbstractClientConnAdapter | Abstract adapter from operated to managed client connections. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| AbstractConnPool | An abstract connection pool. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| AbstractPooledConnAdapter | Abstract adapter from pool entries to client connections. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| AbstractPoolEntry | A pool entry for use by connection manager implementations. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| BasicClientConnectionManager | A connection manager for a single connection. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| BasicHttpClientConnectionManager | A connection manager for a single connection. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| BasicPooledConnAdapter | A connection wrapper and callback handler. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| BasicPoolEntry | Basic implementation of a connection pool entry. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| BasicPoolEntryRef | A weak reference to a BasicPoolEntry. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| ConnectionShutdownException | Signals that the connection has been shut down or released back to the the connection pool | Class | org.apache.http.impl.conn | Apache HttpComponents |
| ConnPoolByRoute | A connection pool that maintains connections by route. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| DefaultClientConnection | Default implementation of an operated client connection. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultClientConnectionOperator | Default implementation of a ClientConnectionOperator. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultHttpResponseParser | Lenient HTTP response parser implementation that can skip malformed data until a valid HTTP response message head is encountered. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultHttpResponseParserFactory | Default factory for response message parsers. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultHttpRoutePlanner | Default implementation of an HttpRoutePlanner. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultManagedHttpClientConnection | Default ManagedHttpClientConnection implementation. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultProxyRoutePlanner | that routes requests through a default proxy. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultResponseParser | Default HTTP response parser implementation. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultRoutePlanner | Default implementation of an HttpRoutePlanner. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| DefaultSchemePortResolver | Default SchemePortResolver. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| IdleConnectionHandler | A helper class for connection managers to track idle connections. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| InMemoryDnsResolver | In-memory DnsResolver implementation. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| LoggingSessionInputBuffer | Logs all data read to the wire LOG. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| LoggingSessionOutputBuffer | Logs all data written to the wire LOG. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| ManagedHttpClientConnectionFactory | Factory for ManagedHttpClientConnection instances. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| PoolEntryRequest | Encapsulates a request for a BasicPoolEntry. | Interface | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| PoolingClientConnectionManager | Manages a pool of OperatedClientConnection and is able to service connection requests from multiple execution threads. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| PoolingHttpClientConnectionManager | ClientConnectionPoolManager maintains a pool of HttpClientConnections and is able to service connection requests | Class | org.apache.http.impl.conn | Apache HttpComponents |
| ProxySelectorRoutePlanner | Default implementation of an HttpRoutePlanner. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| RouteSpecificPool | A connection sub-pool for a specific route, used by ConnPoolByRoute. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| SchemeRegistryFactory | Class | org.apache.http.impl.conn | Apache HttpComponents | |
| SingleClientConnManager | A connection manager for a single connection. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| SystemDefaultDnsResolver | DNS resolver that uses the default OS implementation for resolving host names. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| SystemDefaultRoutePlanner | HttpRoutePlanner implementation based on ProxySelector. | Class | org.apache.http.impl.conn | Apache HttpComponents |
| ThreadSafeClientConnManager | Manages a pool of OperatedClientConnection and is able to service connection requests from multiple execution threads. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| WaitingThread | Represents a thread waiting for a connection. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| WaitingThreadAborter | A simple class that can interrupt a WaitingThread. | Class | org.apache.http.impl.conn.tsccm | Apache HttpComponents |
| Wire | Logs data to the wire LOG. | Class | org.apache.http.impl.conn | Apache HttpComponents |