String serverName) {
List<ParameterValue> parameters = new LinkedList<ParameterValue>();
Change change = new Change(jsonChange);
PatchSet patchSet = new PatchSet(jsonPatchSet);
PatchsetCreated event = new PatchsetCreated();
Provider provider = createProviderFromGerritServer(serverName);
event.setChange(change);
event.setPatchset(patchSet);
event.setProvider(provider);
GerritTriggerParameters.setOrCreateParameters(event, parameters);
return parameters;