Github user hsaputra commented on a diff in the pull request:
https://github.com/apache/flink/pull/344#discussion_r24097257
--- Diff:
flink-runtime/src/test/scala/org/apache/flink/runtime/testingUtils/TestingMemoryArchivist.scala
---
@@ -31,10 +31,11 @@ trait TestingMemoryArchivist extends ActorLogMessages {
def receiveTestingMessages: Receive = {
case RequestExecutionGraph(jobID) =>
- graphs.get(jobID) match {
- case Some(executionGraph) => sender ! ExecutionGraphFound(jobID,
executionGraph)
- case None => sender ! ExecutionGraphNotFound(jobID)
+ val executionGraph = getGraph(jobID)
+ if (executionGraph != null) {
--- End diff --
I like @tillrohrmann to use Option as alternative to null. In Java land,
Guava's Optional could be use to do similar thing (which I think will be part
of Java8)
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