question: gets the value of the changedcampaigns 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 changedcampaigns property . for example , to add a new item , do as follows : getchangedcampaigns . add newitem ; objects of the following type s are allowed in the list campaignchangedata concode_field_sep List<CampaignChangeData> changedCampaigns concode_elem_sep List<FeedChangeData> changedFeeds concode_elem_sep String lastChangeTimestamp concode_field_sep List<FeedChangeData> getChangedFeeds concode_elem_sep String getLastChangeTimestamp concode_elem_sep void setLastChangeTimestamp
target: List < CampaignChangeData > function ( ) { if ( changedCampaigns == null ) { changedCampaigns = new ArrayList < CampaignChangeData > ( ) ; } return this . changedCampaigns ; }