Github user brkyvz commented on a diff in the pull request:
https://github.com/apache/spark/pull/19495#discussion_r144992332
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/streaming/GroupState.scala ---
@@ -205,92 +205,127 @@ trait GroupState[S] extends LogicalGroupState[S] {
/** Get the state value as a scala Option. */
def getOption: Option[S]
- /**
- * Update the value of the state. Note that `null` is not a valid value,
and it throws
- * IllegalArgumentException.
- */
- @throws[IllegalArgumentException]("when updating with null")
+ /** Update the value of the state. */
def update(newState: S): Unit
/** Remove this state. */
def remove(): Unit
/**
* Whether the function has been called because the key has timed out.
- * @note This can return true only when timeouts are enabled in
`[map/flatmap]GroupsWithStates`.
+ * @note This can return true only when timeouts are enabled in
`[map/flatmap]GroupsWithState`.
*/
def hasTimedOut: Boolean
+
--- End diff --
nit: extra line
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