Josh Rosen created SPARK-45508:
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Summary: org.apache.spark.unsafe.Platform uses wrong cleaner class
name in JDK 11+
Key: SPARK-45508
URL: https://issues.apache.org/jira/browse/SPARK-45508
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 3.5.0
Reporter: Josh Rosen
In JDK 11+, the code at
[https://github.com/apache/spark/blob/v3.5.0/common/unsafe/src/main/java/org/apache/spark/unsafe/Platform.java#L213]
hits a fallback path because we are using the wrong cleaner class name.
This can be verified via
```
val f =
classOf[org.apache.spark.unsafe.Platform].getDeclaredField("CLEANER_CREATE_METHOD")
f.setAccessible(true)
f.get(null)
```
returning `null` instead of a method.
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