Check for 'branchListIndexes' branch before adding to TTreeCache

[davidlt]

The following is causing a crash on 4.6 workflow with ROOT 6.04.00.

Particular input file example:

/store/data/Run2010A/MinimumBias/RAW-RECO/v6/000/138/923/142C82F8-4285-DF11-B26D-00E081791865.root

This input file does not contain 'branchListIndexes' branch.

For more details, look at ROOT-7015 and ROOT commit:
5fc68e7a161370008aa97cac9c5cdda6ad326ea5

..this avoids the situation where the user could ask for a
branch to be added to a TTree's cache and have the
call silently have no effect.

ROOT 6.04.00 will trigger error exception if input file does not
have required branch.

Signed-off-by: David Abdurachmanov David.Abdurachmanov@cern.ch

[cmsbuild]

A new Pull Request was created by @davidlt for CMSSW_7_5_X.

Check for 'branchListIndexes' branch before adding to TTreeCache

It involves the following packages:

IOPool/Input

@cmsbuild, @Dr15Jones, @nclopezo can you please review it and eventually sign? Thanks.
@wddgit, @wmtan this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
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@nclopezo you are the release manager for this.
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[Dr15Jones]

please test

[Dr15Jones]

+1

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs unless changes or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @smuzaffar

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs unless changes or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @smuzaffar

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs unless changes (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @smuzaffar

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-9231/9593/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs unless changes (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @smuzaffar

[davidlange6]

+1