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Posted to issues@spark.apache.org by "Josh Rosen (Jira)" <ji...@apache.org> on 2023/10/12 01:00:00 UTC

[jira] [Created] (SPARK-45508) org.apache.spark.unsafe.Platform uses wrong cleaner class name in JDK 11+

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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