Publication pub = getPublication("test");
Area area = pub.getArea(Publication.AUTHORING_AREA);
Area trashArea = pub.getArea("trash");
SiteStructure site = area.getSite();
SiteNode node = site.getNode(PATH);
Document doc_en = node.getLink("en").getDocument();
Document doc_de = node.getLink("de").getDocument();
DocumentLocator loc = DocumentLocator.getLocator(pub.getId(), "trash", PATH, doc_en.getLanguage());
docMgr.copyAll(area, PATH, trashArea, PATH);