#5 WMS Server getCapabilities

[Brad Grimmett]

Add support for querying the WMS server for capabilities at runtime

See references:
http://webhelp.esri.com/arcgisserver/9.3/java/index.htm#wms_service_in_a_browser.htm
http://docs.geoserver.org/stable/en/user/services/wms/reference.html