gaborgsomogyi commented on a change in pull request #28368:
URL: https://github.com/apache/spark/pull/28368#discussion_r415756591
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/connection/SecureConnectionProvider.scala
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@@ -26,6 +26,12 @@ import org.apache.spark.internal.Logging
import org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions
import org.apache.spark.util.SecurityUtils
+/**
+ * Some of the secure connection providers modify global JVM security
configuration.
+ * In order to avoid race the modification must be synchronized with this.
+ */
+private[connection] object SecurityConfigurationLock
Review comment:
When other parts of the code is also modifying the global JVM security
config then it must be moved into a global place (and must be used).
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