SDC-2005. NPE when previewing Log format data
SDC-2005. NPE when previewing Log format data

Change-Id: I970f203f57527e9423dda96333da9b51956f9021
Reviewed-on: https://review.streamsets.net/1555
Tested-by: StreamSets CI <809627f37325a679986bd660c7713476a56d59cd@streamsets.com>
Reviewed-by: Madhukar Devaraju <d22477479bbf55ba62bd822f4112c80f292c7805@streamsets.com>
Reviewed-by: Alejandro Abdelnur <eff6e25af3161e538583c5301201d7b17f64867c@streamsets.com>

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