### Question:
DataxTask extends AbstractTask { @Override public void handle() throws Exception { try { String threadLoggerInfoName = String.format("TaskLogInfo-%s", taskExecutionContext.getTaskAppId()); Thread.currentThread().setName(threadLoggerInfoName); Map<String, Property> paramsMap = ParamUtils.convert(ParamUtils.getUserDefParamsMap(taskExecutionContext.getDefinedParams()), taskExecutionContext.getDefinedParams(), dataXParameters.getLocalParametersMap(), CommandType.of(taskExecutionContext.getCmdTypeIfComplement()), taskExecutionContext.getScheduleTime()); String jsonFilePath = buildDataxJsonFile(paramsMap); String shellCommandFilePath = buildShellCommandFile(jsonFilePath, paramsMap); CommandExecuteResult commandExecuteResult = shellCommandExecutor.run(shellCommandFilePath); setExitStatusCode(commandExecuteResult.getExitStatusCode()); setAppIds(commandExecuteResult.getAppIds()); setProcessId(commandExecuteResult.getProcessId()); } catch (Exception e) { logger.error("datax task failure", e); setExitStatusCode(Constants.EXIT_CODE_FAILURE); throw e; } } DataxTask(TaskExecutionContext taskExecutionContext, Logger logger); @Override void init(); @Override void handle(); @Override void cancelApplication(boolean cancelApplication); String[] tryExecuteSqlResolveColumnNames(BaseDataSource baseDataSource, String sql); @Override AbstractParameters getParameters();  }### Answer:
@Test public void testHandle() throws Exception { }