diff --git a/spark/src/test/scala/org/apache/comet/CometCastSuite.scala b/spark/src/test/scala/org/apache/comet/CometCastSuite.scala
index ce6a2b761..970c40b68 100644
--- a/spark/src/test/scala/org/apache/comet/CometCastSuite.scala
+++ b/spark/src/test/scala/org/apache/comet/CometCastSuite.scala
@@ -20,14 +20,12 @@
 package org.apache.comet
 
 import java.io.File
-import java.sql.SQLException
 
 import scala.util.Random
 
-import org.apache.spark.SparkException
 import org.apache.spark.sql.{CometTestBase, DataFrame, SaveMode}
 import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper
-import org.apache.spark.sql.functions.{col, exp, expr}
+import org.apache.spark.sql.functions.col
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.types.{DataType, DataTypes}