| AbstractContentBody |
| ByteArrayBody | Body part that is built using a byte array containing a file. |
| ContentBody | |
| ContentDescriptor | Represents common content properties. |
| FileBody | |
| FormBodyPart | FormBodyPart class represents a content body that can be used as a part of multipart encoded entities. |
| Header | The header of an entity (see RFC 2045). |
| HttpMultipart | HttpMultipart represents a collection of MIME multipart encoded content bodies. |
| HttpMultipartMode |
| InputStreamBody |
| MIME | |
| MinimalField | Minimal MIME field. |
| MultipartEntity | Multipart/form coded HTTP entity consisting of multiple body parts. |
| StringBody |