SOAP with Attachments API for Java

The SOAP with Attachments API for Java (SAAJ) is a low-level API on which JAX-WS and JAXR depend. SAAJ enables the production and consumption of messages that conform to the SOAP 1.1 and 1.2 specifications and SOAP with Attachments note. Most developers do not use the SAAJ API, instead using the higher-level JAX-WS API.