sandip-db commented on code in PR #56600:
URL: https://github.com/apache/spark/pull/56600#discussion_r3449146014
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/xml/StaxXmlGenerator.scala:
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@@ -72,7 +72,13 @@ class StaxXmlGenerator(
private val binaryFormatter = ToStringBase.getBinaryFormatter
private val gen = {
- val factory = XMLOutputFactory.newInstance()
+ // Instantiate the Woodstox factory directly from the shaded Hadoop
classes instead of
+ // using XMLOutputFactory.newInstance(). The latter resolves an
implementation via the
+ // service-loader mechanism, which could pick up a different (unshaded)
StAX provider on the
+ // classpath. Such a provider would not understand the shaded
WstxOutputProperties keys set
+ // below and would throw IllegalArgumentException. Constructing the shaded
factory directly
+ // guarantees the properties and the implementation always match.
+ val factory = new WstxOutputFactory()
// to_xml disables structure validation to allow multiple root tags
factory.setProperty(WstxOutputProperties.P_OUTPUT_VALIDATE_STRUCTURE,
validateStructure)
factory.setProperty(WstxOutputProperties.P_OUTPUT_VALIDATE_NAMES,
options.validateName)
Review Comment:
Good point. I am approving the current PR.
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