If a source field value is null the CloneFieldUpdateProcessor throws a null pointer exception.
Attached a trivial patch.
Anyone willing to commit this? With the attached patch any null value is ignored, an alternative approach is to preserve the null by adding it to the destination field. Regardless the approach, it should be null safe.
Commit 1649323 from Erik Hatcher in branch 'dev/trunk'
[ https://svn.apache.org/r1649323 ]
SOLR-6735: Make CloneFieldUpdateProcessorFactory null safe
Commit 1649324 from Erik Hatcher in branch 'dev/branches/branch_5x'
[ https://svn.apache.org/r1649324 ]
SOLR-6735: Make CloneFieldUpdateProcessorFactory null safe (merged with CHANGES.txt manual edits from trunk r1649323)
committed. Thanks Steve!
Bulk close after 5.0 release.