private static ImtGroup getGroupByUuid(List<ImtGroup> imtGroups, String uuid) {
		ImtGroup targetGroup = null;
		for (ImtGroup imtGroup : imtGroups) {
			if (uuid.equals(imtGroup.getUuid())) {
				targetGroup = imtGroup;
				break;
			}
			
			if (null != imtGroup.getNexts()) {
				targetGroup = getGroupByUuid(imtGroup.getNexts(), uuid);
			}
			
			if (null != targetGroup) {
				break;
			}
		}
		
		return targetGroup;
	}