yaooqinn opened a new pull request, #52037:
URL: https://github.com/apache/spark/pull/52037
### What changes were proposed in this pull request?
This PR adds the SerialVersionUID annotation and moves the newly added
runtimeMap out from the ctor.
### Why are the changes needed?
With a v400 client to a v410 server, ```java.io.InvalidClassException:
org.apache.spark.sql.types.Metadata;``` raised
```
Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version 4.0.0
/_/
Type in expressions to have them evaluated.
Spark connect server version 4.1.0-SNAPSHOT.
Spark session available as 'spark'.
scala> import spark.implicits._
import spark.implicits._
scala> spark.catalog.listCatalogs().map(_.name)
res1: org.apache.spark.sql.connect.Dataset[String] = Invalid Dataframe;
[INTERNAL_ERROR] Failed to unpack scala udf. SQLSTATE: XX000
```
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
```
Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version 4.0.0
/_/
Type in expressions to have them evaluated.
Spark connect server version 4.1.0-SNAPSHOT.
Spark session available as 'spark'.
scala> import spark.implicits._
import spark.implicits._
scala> spark.catalog.listCatalogs().map(_.name)
res1: org.apache.spark.sql.connect.Dataset[String] = [value: string]
scala> spark.catalog.listCatalogs().map(_.name).collect()
res2: Array[String] = Array("spark_catalog")
```
### Was this patch authored or co-authored using generative AI tooling?
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If no, write 'No'.
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No
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