After being packaged as jar, when there is an abnormal log4j log output stack, the number of lines of the corresponding source code cannot be found, but the Unknown Source appears.

The reason may be that it is packaged with ant, and the parameter debug="true" in javac is not set

The output log is similar to:

java.lang.NullPointerException
        at com.dyr.cloud.connection.impl.ActionDelegateImpl.getAllGPUGrou pAllocationAlgorithm
( Unknown Source )
        at com.dyr.cloud.client.resources.HostManager.getAllGPUGroupAlgormmA.jp