Isolation Runner looking for job.jar in wrong directory

The IsolationTaskRunner is looking for the job.jar file in the task directory similar to this:

/d01/dennis/hadoop/mapred/local/taskTracker/jobcache/job_0001/task_0001_m_000000_0/job.jar

This actual file is:

/d01/dennis/hadoop/mapred/local/taskTracker/jobcache/job_0001/job.jar

I have changed the IsolationTaskRunner to look in the correct directory for the jar file.