Created attachment 394960 [details]
SRPM that demonstrates the failure

Description of problem:
I've got a SRPM that reproduceably fails to build unless I disable brp-java-repack-jars from running with %define __jar_repack 0. I'll attach the SRPM to this bug report.

Here's a  koji scratch build demonstrating the problem:
    http://koji.fedoraproject.org/koji/taskinfo?taskID=1997140
For comparison, here's a successful build with jar_repack disabled:
    http://koji.fedoraproject.org/koji/taskinfo?taskID=1997096

Version-Release number of selected component (if applicable):
redhat-rpm-config-9.0.3-18.fc12.noarch

How reproducible:
Every time

Steps to Reproduce:
1. Build the attached SRPM
  
Actual results:
Errors -- unable to remove files in $RPM_BUILD_ROOT/tmp

Expected results:
RPMs built

Additional info:
You have to delete the %define line to make it fail -- just commenting it out doesn't change anything