eMcrobjects.addContent(eMcrObject);
            }
            try {
                StringWriter sw = new StringWriter();
                XMLOutputter xout = new XMLOutputter(Format.getPrettyFormat());
                xout.output(docOut, sw);
                return Response.ok(sw.toString())
                    .type("application/xml; charset=UTF-8")
                    .build();
            } catch (IOException e) {
                throw new MCRRestAPIException(Response.Status.INTERNAL_SERVER_ERROR,
                    new MCRRestAPIError(MCRRestAPIError.CODE_INTERNAL_ERROR, GENERAL_ERROR_MSG, e.getMessage()));
            }
        }

        //output as JSON
        if (MCRRestAPIObjects.FORMAT_JSON.equals(format)) {
            StringWriter sw = new StringWriter();
            try {
                JsonWriter writer = new JsonWriter(sw);
                writer.setIndent("    ");
                writer.beginObject();
                writer.name("numFound").value(objIdDates.size());
                writer.name("mycoreobjects");
                writer.beginArray();
                for (MCRObjectIDDate oid : objIdDates) {
                    writer.beginObject();
                    writer.name("ID").value(oid.getId());

writer.name("ID").value(oid.getId());
                    writer.name("lastModified").value(SDF_UTC.format(oid.getLastModified()));
                    writer.name("href").value(info.getAbsolutePathBuilder().path(oid.getId()).build().toString());
                    writer.endObject();
                }
                writer.endArray();
                writer.endObject();

                writer.close();
                return Response.ok(sw.toString())
                    .type("application/json; charset=UTF-8")
                    .build();
            } catch (IOException e) {
                throw new MCRRestAPIException(Response.Status.INTERNAL_SERVER_ERROR,
                    new MCRRestAPIError(MCRRestAPIError.CODE_INTERNAL_ERROR, GENERAL_ERROR_MSG, e.getMessage()));
            }
        }
        throw new MCRRestAPIException(Response.Status.INTERNAL_SERVER_ERROR,
            new MCRRestAPIError(MCRRestAPIError.CODE_INTERNAL_ERROR, "A problem in programm flow", null));

throws MCRRestAPIException {
        LogManager.getLogger().debug("Permission: {}, Object: {}, Derivate: {}, Path: {}", permission, objectId, derId,
            path);
        Optional<String> checkable = Optional.ofNullable(derId)
            .filter(d -> path != null) //only check for derId if path is given
            .map(Optional::of)
            .orElseGet(() -> Optional.ofNullable(objectId));
        checkable.ifPresent(id -> LogManager.getLogger().info("Checking " + permission + " access on " + id));
        MCRRequestScopeACL aclProvider = MCRRequestScopeACL.getInstance(requestContext);
        boolean allowed = checkable
            .map(id -> aclProvider.checkPermission(id, permission.toString()))
            .orElse(true);
        if (allowed) {
            return;
        }

for (Element eLabel : e.getChildren("label")) {
                if (lang == null || lang.equals(eLabel.getAttributeValue("lang", Namespace.XML_NAMESPACE))) {
                    writer.beginObject();
                    writer.name("lang").value(eLabel.getAttributeValue("lang", Namespace.XML_NAMESPACE));
                    writer.name("text").value(eLabel.getAttributeValue("text"));
                    if (eLabel.getAttributeValue("description") != null) {
                        writer.name("description").value(eLabel.getAttributeValue("description"));
                    }
                    writer.endObject();
                }
            }
            writer.endArray();

            if (e.getChildren("category").size() > 0) {