Github user liningalex commented on a diff in the pull request:
https://github.com/apache/incubator-predictionio/pull/387#discussion_r120186994
--- Diff:
core/src/main/scala/org/apache/predictionio/workflow/CreateServer.scala ---
@@ -198,7 +198,7 @@ object CreateServer extends Logging {
kryo.invert(modeldata.get(engineInstance.id).get.models).get.
asInstanceOf[Seq[Any]]
- val batch = if (engineInstance.batch.nonEmpty) {
+ val batch = if (engineInstance.batch != null &&
engineInstance.batch.nonEmpty) {
--- End diff --
if not so, pio deploy crashes.
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