Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/14850#discussion_r76518705
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/ScalaUDF.scala
---
@@ -1057,5 +1057,17 @@ case class ScalaUDF(
private[this] val converter =
CatalystTypeConverters.createToCatalystConverter(dataType)
- override def eval(input: InternalRow): Any = converter(f(input))
+ val npeErrorMessage = "Given UDF throws NPE during execution, please
check the UDF " +
+ "to make sure it handles null parameters correctly."
+
+ override def eval(input: InternalRow): Any = {
+ val result = try {
+ f(input)
+ } catch {
+ case e: NullPointerException =>
+ throw new RuntimeException(npeErrorMessage, e)
--- End diff --
Can we still use `NullPointerException`? NullPointerException can have a
specified message. Then, you can use `setStackTrace` to set the original
stacktrace.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
