Fix Proactive build
:rest:rest-server:compileJava/srv/project-sources/scheduling/rest/rest-server/src/main/java/org/ow2/proactive_grid_cloud_portal/rm/RMRest.java:268: error: invalid method reference
.map(RMNodeSourceEvent::getNodeSourceName)
^
cannot find symbol
symbol: method getNodeSourceName()
location: class RMNodeSourceEvent
See https://github.com/ow2-proactive/scheduling/blob/master/rest/rest-server/src/main/java/org/ow2/proactive_grid_cloud_portal/rm/RMRest.java#L268 and https://github.com/ow2-proactive/scheduling/blob/master/rm/rm-api/src/main/java/org/ow2/proactive/resourcemanager/common/event/RMNodeSourceEvent.java#L188