我尝试将以下代码编写为流:AbstractDevicemyDevice=null;for(AbstractDevicedevice:session.getWorkplace().getDevices()){if(device.getPluginconfig().getPluginType().getId()==1){myDevice=device;}}这段代码工作正常。但是当我这样重写它时，它不再起作用了:myDevice=session.getWorkplace().getDevices().stream().filter(s->s.getPluginconfig().getPlug