Slight refinement to last change - a cached row which
authordswitkin <dswitkin@59b500cc-1b3d-0410-9834-0bbf25fbcc57>
Sat, 7 Aug 2010 12:50:16 +0000 (12:50 +0000)
committerdswitkin <dswitkin@59b500cc-1b3d-0410-9834-0bbf25fbcc57>
Sat, 7 Aug 2010 12:50:16 +0000 (12:50 +0000)
failed should throw an exception, not return NULL.

git-svn-id: http://zxing.googlecode.com/svn/trunk@1513 59b500cc-1b3d-0410-9834-0bbf25fbcc57


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