| GenericMarshaller | Subinterface of Marshaller that has support for Java 5 generics. |
| GenericUnmarshaller | Subinterface of Unmarshaller that has support for Java 5 generics. |
| Marshaller | Defines the contract for Object XML Mapping Marshallers. |
| Unmarshaller | Defines the contract for Object XML Mapping unmarshallers. |
| MarshallingException | Base class for exception thrown when a marshalling or unmarshalling error occurs. |
| MarshallingFailureException | Exception thrown on marshalling failure. |
| UncategorizedMappingException | Exception that indicates that the cause cannot be distinguished further. |
| UnmarshallingFailureException | Exception thrown on unmarshalling failure. |
| ValidationFailureException | Exception thrown on marshalling validation failure. |
| XmlMappingException | Root of the hierarchy of Object XML Mapping exceptions. |