Github user mike0sv commented on a diff in the pull request:
https://github.com/apache/spark/pull/18488#discussion_r134622727
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
---
@@ -154,13 +154,13 @@ case class StaticInvoke(
val evaluate = if (returnNullable) {
if (ctx.defaultValue(dataType) == "null") {
s"""
- ${ev.value} = $callFunc;
+ ${ev.value} = (($javaType) ($callFunc));
--- End diff --
from janino documentation: "Type arguments: Are parsed, but otherwise
ignored. The most significant restriction that follows is that you must cast
return values from method invocations, e.g. "(String) myMap.get(key)"
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