HarmonyOS taskpool中new 对象报错未初始化

@Concurrent 
function func(args:string) { 
  console.log("func: " + args); 
  try { 
    let demo = new TaskpoolDemo(); 
    demo.name = "aaa"; 
    console.log(`demo.name is ${demo.name}`) 
  } catch (e) { 
    console.log(`taskpool func err is ${JSON.stringify(e)}`) 
  } 
  return args; 
} 
export async function taskpoolTest() { 
  let value = await taskpool.execute(func, 'abc'); 
  console.log("taskpool result: " + value); 
} 
export class TaskpoolDemo{ 
  name:string='' 
}