问题

集成xxl-job的应用日志出现异常：java.io.EOFException: readObject: unexpected end of file，虽然不影响任务执行，但一直报错。

报错堆栈信息如下：

2023-11-15 13:26:43.789 ERROR -> [Thread-9] c.x.j.c.thread.TriggerCallbackThread : java.io.EOFException: readObject: unexpected end of file
com.xxl.rpc.util.XxlRpcException: java.io.EOFException: readObject: unexpected end of file
        at com.xxl.rpc.serialize.impl.HessianSerializer.deserialize(HessianSerializer.java:52)
        at com.xxl.job.core.thread.TriggerCallbackThread.retryFailCallbackFile(TriggerCallbackThread.java:238)
        at com.xxl.job.core.thread.TriggerCallbackThread.access$400(TriggerCallbackThread.java:24)
        at com.xxl.job.core.thread.TriggerCallbackThread$2.run(TriggerCallbackThread.java:111)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.EOFException: readObject: unexpected end of file
        at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:2147)
        at com.xxl.rpc.serialize.impl.HessianSerializer.deserialize(HessianSerializer.java:49)
        ... 4 common frames omitted

原因

后续补充…

解决方法

1. 根据该应用配置属性 xxl:job:executor:logpath 找到配置xxl-job日志文件位置，并进入callbacklog目录。
2. 找到以上目录下大小为0的文件，将其删除。如下：