srowen commented on a change in pull request #23866: [SPARK-26963][MLLIB]
SizeEstimator can't make some JDK fields accessible in Java 9+
URL: https://github.com/apache/spark/pull/23866#discussion_r259217664
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File path: core/src/main/scala/org/apache/spark/util/SizeEstimator.scala
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@@ -334,9 +334,21 @@ object SizeEstimator extends Logging {
if (fieldClass.isPrimitive) {
sizeCount(primitiveSize(fieldClass)) += 1
} else {
- field.setAccessible(true) // Enable future get()'s on this field
+ // Note: in Java 9+ this would be better with trySetAccessible and
canAccess
+ try {
+ field.setAccessible(true) // Enable future get()'s on this field
+ pointerFields = field :: pointerFields
Review comment:
No, the point is that we don't want to try to access it below; it's not
accessible
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