I have changed the class to org.springframework.scheduling.quartz.JobDetailFactoryBean & org.springframework.scheduling.quartz.CronTriggerFactoryBean, then the class not found exception is gone but the job is not running.
Has anyone created a scheduled job alfresco 6.1 SDK 4?
Alfresco 6.x has updated Quartz libraries. This has changed how jobs need to be registered a bit, so most of the examples you can find on the internet won't work because they address versions of Alfresco before 6.x. You can look at the Alfresco source code itself to find how jobs can be registered now.