Once there was Apache SOAP which is an implementation of the SOAP submission to W3C. It also supersedes, the IBM SOAP4J implementation.
Now there is Apache AXIS which is also an implementation of the SOAP submission to W3C. However Axis supersedes Apache SOAP in functionality, performance, and interoperability and, in particular, has passed Sun's JAX-RPC and SAAJ compliance tests.
Axis provides a high level Java API for working with web services, and can also be used to create web services.
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