try {
NodeRevisionDescriptors revisionDescriptors =
content.retrieve(slideToken, currentResource);
// Retrieve latest revision descriptor
currentDescriptor =
content.retrieve(slideToken, revisionDescriptors);
} catch (SlideException e) {
// Silent exception : Objects without any revision are
// considered collections, and do not have any attributes
// Any security based exception will be trapped here
// Any locking based exception will be trapped here