### Question:
PlainPermissionLoader { public void load() { Map<String, PlainAccessResource> plainAccessResourceMap = new HashMap<>(); List<RemoteAddressStrategy> globalWhiteRemoteAddressStrategy = new ArrayList<>(); JSONObject plainAclConfData = AclUtils.getYamlDataObject(fileHome + File.separator + fileName, JSONObject.class); if (plainAclConfData == null || plainAclConfData.isEmpty()) { throw new AclException(String.format("%s file is not data", fileHome + File.separator + fileName)); } log.info("Broker plain acl conf data is : ", plainAclConfData.toString()); JSONArray globalWhiteRemoteAddressesList = plainAclConfData.getJSONArray("globalWhiteRemoteAddresses"); if (globalWhiteRemoteAddressesList != null && !globalWhiteRemoteAddressesList.isEmpty()) { for (int i = 0; i < globalWhiteRemoteAddressesList.size(); i++) { globalWhiteRemoteAddressStrategy.add(remoteAddressStrategyFactory. getRemoteAddressStrategy(globalWhiteRemoteAddressesList.getString(i))); } } JSONArray accounts = plainAclConfData.getJSONArray("accounts"); if (accounts != null && !accounts.isEmpty()) { List<PlainAccessConfig> plainAccessConfigList = accounts.toJavaList(PlainAccessConfig.class); for (PlainAccessConfig plainAccessConfig : plainAccessConfigList) { PlainAccessResource plainAccessResource = buildPlainAccessResource(plainAccessConfig); plainAccessResourceMap.put(plainAccessResource.getAccessKey(),plainAccessResource); } } this.globalWhiteRemoteAddressStrategy = globalWhiteRemoteAddressStrategy; this.plainAccessResourceMap = plainAccessResourceMap; } PlainPermissionLoader(); void load(); PlainAccessResource buildPlainAccessResource(PlainAccessConfig plainAccessConfig); void validate(PlainAccessResource plainAccessResource); boolean isWatchStart();  }### Answer:
@Test(expected = AclException.class) public void testPlainAclPlugEngineInit() { System.setProperty("rocketmq.home.dir", ""); new PlainPermissionLoader().load(); }