Gets the value of the participant property.
This accessor method returns a reference to the live list,
not a snapshot. Therefore any modification you make to the
returned list will be present inside the JAXB object.
This is why there is not a set
method for the participant property.
For example, to add a new item, do as follows:
getParticipant().add(newItem);
Objects of the following type(s) are allowed in the list
{@link Participant}