Java API for XML Web Services
The Java API for XML Web Services (JAX-WS) is a Java programming language API for creating web services. It is part of the Java EE platform from Sun Microsystems. Like the other Java EE APIs, JAX-WS uses annotations, introduced in Java SE 5, to simplify the development and deployment of web service clients and endpoints. It is part of the Java Web Services Development Pack. JAX-WS can be used in Java SE starting with version 6.
The reference implementation of JAX-WS is developed as an open source project and is part of project GlassFish, an open source Java EE application server. It is called JAX-WS RI (RI for reference implementation) and is said to be a production quality implementation (contrary to the former reference implementation being a proof of concept). This reference implementation is now part of the GlassFish Metro distribution .
JAX-WS also is one of the foundations of WSIT.