MaxGekk opened a new pull request, #42855:
URL: https://github.com/apache/spark/pull/42855
### What changes were proposed in this pull request?
In the PR, I propose to check that the `class` and `method` arguments are
not a NULL in `CallMethodViaReflection`. And if they are, throw an
`AnalysisException` with new error class `DATATYPE_MISMATCH.UNEXPECTED_NULL`.
### Why are the changes needed?
To fix the issue demonstrated by the example:
```sql
$ spark-sql (default)> select reflect('java.util.UUID', CAST(NULL AS
STRING));
[INTERNAL_ERROR] The Spark SQL phase analysis failed with an internal error.
You hit a bug in Spark or the Spark plugins you use. Please, report this bug to
the corresponding communities or vendors, and provide the full stack trace.
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
By running new test:
```
$ build/sbt "test:testOnly *.MiscFunctionsSuite"
```
### Was this patch authored or co-authored using generative AI tooling?
No.
Authored-by: Max Gekk <[email protected]>
(cherry picked from commit fd424caf6c46e7030ac2deb2afbe3f4a5fc1095c)
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