`JPAContext is not ready` error on second save call on Dao

[swubily]

Calling dao.save() twice in a crone job method, it will report "JPAContext is not ready" error on second save.

@Cron("cron.order.delivered")
public void orderDelivered(){
         OrderDay orderDay = new OrderDay();
         orderDay.setAmount(BigDecimal.ZERO);
         dao.save(orderDay);
         OrderDay orderDay2 = new OrderDay();
         orderDay2.setAmount(BigDecimal.ZERO);
         dao.save(orderDay2);
}

dao.save(orderDay2) will trigger the issue

[greenlaw110]

@swubily please report your actframework and act-jpa-common version, also are you using act-eclipselink or act-hibernate?

[swubily]

actframework : 1.8.17.1
act-jpa-common version: 1.5.5
This issue seems caused by @createdat, @LastModifiedAt; if I add one of the annotation in entity, the issue will be reproduced.

` code:

@CreatedAt
@Column(name = "create_time")
public Date createTime;
@LastModifiedAt
@Column(name = "update_time")
public Date updateTime;`