问题描述：二个计划任务，但是是同一套代码（带参数），交叉执行时，出现乐观锁问题，导致后执行的任务异常结束，这个问题如何解决？？？
javax.persistence.OptimisticLockException: Exception [EclipseLink-5010] (Eclipse Persistence Services - 2.7.3.14-cuba): org.eclipse.persistence.exceptions.OptimisticLockException
Exception Description: The object [cn.net.xxx.weixin.work.xxx.entity.WxAccount-e49b5bc9-2d95-8599-ebb1-16d2d3f22af9 [detached]] cannot be merged because it has changed or been deleted since it was last read.
Class> cn.net.xxx.weixin.work.xxx.entity.WxAccount