Returns an instance of UUIDGen
AxisProperties.setClassOverrideProperty(UUIDGen.class, "axis.UUIDGenerator");
AxisProperties.setClassDefault(UUIDGen.class, "org.apache.axis.components.uuid.FastUUIDGen");
UUIDGen uuidgen = (UUIDGen) AxisProperties.newInstance(UUIDGen.class);
log.debug("axis.UUIDGenerator:" + uuidgen.getClass().getName());
return uuidgen;