imc平台，ssm模块nat日志转储失败

imc平台，ssm模块nat日志转储失败，防火墙设备F5020推送日志信息正常。在ssm日志里查看到如下报错信息，，请问如何处理。2020-07-09 02:00:00,386 [schedulerFactory_Worker-8] INFO  com.imc.fwm.datatransfer.dao.ExportFileDaoImpl.creatZips()  - file name ==TBL_20200506.zip2020-07-09 02:00:00,388 [schedulerFactory_Worker-8] ERROR com.imc.fwm.datatransfer.func.DataTransferService.dataTransfer()  - Data dump failed.[Ljava.lang.StackTraceElement;@7994faefjava.lang.NullPointerExceptionat com.imc.fwm.datatransfer.dao.ExportFileDaoImpl.creatZipsForNatFile(ExportFileDaoImpl.java:802)at com.imc.fwm.datatransfer.func.DataTransferService.dataTransfer(DataTransferService.java:125)at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:269)at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:312)at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:114)at org.quartz.core.JobRunShell.run(JobRunShell.java:195)at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520) 2020-07-09 02:00:00,388 [schedulerFactory_Worker-8] INFO  com.imc.fwm.datatransfer.func.DataTransferService.dataTransfer()  - dataTransfer end : 2020-07-09 02:00:00

imc平台，ssm模块nat日志转储失败，防火墙设备F5020推送日志信息正常。在ssm日志里查看到如下报错信息，，请问如何处理。2020-07-09 02:00:00,386 [schedulerFactory_Worker-8] INFO  com.imc.fwm.datatransfer.dao.ExportFileDaoImpl.creatZips()  - file name ==TBL_20200506.zip2020-07-09 02:00:00,388 [schedulerFactory_Worker-8] ERROR com.imc.fwm.datatransfer.func.DataTransferService.dataTransfer()  - Data dump failed.[Ljava.lang.StackTraceElement;@7994faefjava.lang.NullPointerExceptionat com.imc.fwm.datatransfer.dao.ExportFileDaoImpl.creatZipsForNatFile(ExportFileDaoImpl.java:802)at com.imc.fwm.datatransfer.func.DataTransferService.dataTransfer(DataTransferService.java:125)at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:269)at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:312)at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:114)at org.quartz.core.JobRunShell.run(JobRunShell.java:195)at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520) 2020-07-09 02:00:00,388 [schedulerFactory_Worker-8] INFO  com.imc.fwm.datatransfer.func.DataTransferService.dataTransfer()  - dataTransfer end : 2020-07-09 02:00:00