Apache CXF is an open-source, fully featured Web services framework. This example corresponds to the java_first_jaxws example in the CXF distribution. Apache CXF™ is an open source services framework. You will get a greeting with your own name. In this JAX-WS application, we will use Apache CXF-first approach like the earlier POJO application. On top of features defined by JAX-WS standards, Apache CXF provides the capability of conversion between WSDL and Java classes, APIs used.