webMethods Soap Stack

What version of Axis does webMethods 8.0 use for web services?

Under the common\etc directory i see both Axis and JAX-RPC jars, does this mean IS uses both of them for processing\exposing web services? If so in which scenario does it use Axis and when does it use JAX-RPC? Does this have to do anything with the type (Doc Literal,RPC literal etc) of provider WSD that we are creating?