Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/8216#discussion_r37137085
--- Diff: core/src/main/scala/org/apache/spark/scheduler/JobWaiter.scala ---
@@ -17,6 +17,10 @@
package org.apache.spark.scheduler
+import sun.misc.{Signal, SignalHandler}
--- End diff --
I don't really think there is an easy way around the
```sun.misc.Signal/SignalHander``` approach.
I have to admit that my concern is moot if all major implementations
support this (can anyone confirm this?). I just like the JLine approach better
because this doesn't cause Compile/Run-time errors when classes cannot be
found, it will just default to the current behavior.
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