Create IDevelopmentLine in a Project Area by programming

IProcessItemService processService = (IProcessItemService) teamRepository.getClientLibrary(IProcessItemService.class);

projectArea = (IProjectArea) projectArea.getWorkingCopy();

IDevelopmentLine developmentLine = (IDevelopmentLine) IDevelopmentLine.ITEM_TYPE.createItem();

developmentLine.setId("id");

developmentLine.setProjectArea(projectArea);

projectArea.addDevelopmentLine(developmentLine);

IProcessItem[] saved = processService.save(new IProcessItem[] { projectArea, developmentLine }, progressMonitor);