WSO2 WSAS is an Enterprise ready web service container based on Apache Axis2 and related other libraries such as Rampart, Sandesha2, Transports etc... Then what is the advantage of using WSO2 WSAS rather than using those apache libraries directly?
WSO2 WSAS comes with an integrated and tested set of all those libraries so that users do not have to find the compatible libraries and integrate them.
WSO2 WSAS Admin console provides the extensive monitoring, management features.
The try it can be used to test a web service quickly without generating the stubs. Users can change the log levels through the admin console and can enable request/response message logging in order to check the messages comes in and out.
Admin Console can be used to update servers while they are running. I.e users can add parameters, engage modules (there are even sample scenarios to engage Security), apply polices, add transports, add services etc .. WSO2 WSAS persists all these changes to its registry so that it is available even if some one restart the server. This is very useful for services that do not uses a services.xml like jaxws servers.
There are some graphical tools called wsdl2java, java2wsdl, WSDL Converter, Try it, Service Validator and Module Validator.
WSO2 WSAS 3.1.3 can be downloaded here.