Jacoco failed to create QA code coverage report

BUILD SUCCESSFUL
Total time: 510 minutes 46 seconds
generating test coverage report
Buildfile: /home/hudson/workspace/narayana-codeCoverage/qa/run-tests.xml

jacoco-report:
[jacoco:report] Loading execution data file /home/hudson/workspace/narayana-codeCoverage/qa/testoutput/jacoco-qa.exec

BUILD FAILED
/home/hudson/workspace/narayana-codeCoverage/qa/run-tests.xml:540: Error while creating report

Total time: 8 seconds
Buildfile: /home/hudson/workspace/narayana-codeCoverage/qa/run-tests.xml

has-testoutput-output:

testoutput.zip:
     [echo] archiving testoutput to testoutput-jacorb.zip
      [zip] Building zip: /home/hudson/workspace/narayana-codeCoverage/qa/testoutput-jacorb.zip

BUILD SUCCESSFUL
Total time: 9 seconds
+ rm -rf /home/hudson/.m2/repository/org/jboss/narayana
+ cd qa
+ ant -f run-tests.xml jacoco-report
Buildfile: /home/hudson/workspace/narayana-codeCoverage/qa/run-tests.xml

jacoco-report:
[jacoco:report] Loading execution data file /home/hudson/workspace/narayana-codeCoverage/qa/testoutput/jacoco-qa.exec

BUILD FAILED
/home/hudson/workspace/narayana-codeCoverage/qa/run-tests.xml:540: Error while creating report

Total time: 9 seconds
Build step 'Execute shell' marked build as failure
Archiving artifacts
Sending e-mails to: gtrikler@redhat.com
Finished: FAILURE