diff --git a/kyuubi-server/src/main/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilder.scala b/kyuubi-server/src/main/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilder.scala
index 9d7f46eec22..6743a9ad299 100644
--- a/kyuubi-server/src/main/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilder.scala
+++ b/kyuubi-server/src/main/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilder.scala
@@ -102,10 +102,14 @@ class SparkProcessBuilder(
     }
   }
 
-  override protected val engineScalaBinaryVersion: String = {
-    val sparkCoreScalaVersion: String = Paths.get(sparkHome, "jars").toFile.list()
-      .collectFirst { case sparkCoreScalaVersionRegex(scalaVersion) => scalaVersion }
+  private[kyuubi] def extractEngineScalaBinaryVersion(fileNames: Iterable[String]): String = {
+    fileNames.collectFirst { case sparkCoreScalaVersionRegex(scalaVersion) => scalaVersion }
       .getOrElse(throw new KyuubiException("Failed to extract Scala version from spark-core jar"))
+  }
+
+  override protected val engineScalaBinaryVersion: String = {
+    val sparkCoreScalaVersion =
+      extractEngineScalaBinaryVersion(Paths.get(sparkHome, "jars").toFile.list())
     StringUtils.defaultIfBlank(System.getenv("SPARK_SCALA_VERSION"), sparkCoreScalaVersion)
   }
 
diff --git a/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilderSuite.scala b/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilderSuite.scala
index b83cdee4240..55d0aeecfba 100644
--- a/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilderSuite.scala
+++ b/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/spark/SparkProcessBuilderSuite.scala
@@ -26,7 +26,7 @@ import java.util.concurrent.{Executors, TimeUnit}
 import org.scalatest.time.SpanSugar._
 import org.scalatestplus.mockito.MockitoSugar
 
-import org.apache.kyuubi.{KerberizedTestHelper, KyuubiSQLException, SCALA_COMPILE_VERSION, Utils}
+import org.apache.kyuubi._
 import org.apache.kyuubi.config.KyuubiConf
 import org.apache.kyuubi.config.KyuubiConf.{ENGINE_LOG_TIMEOUT, ENGINE_SPARK_MAIN_RESOURCE}
 import org.apache.kyuubi.engine.ProcBuilder.KYUUBI_ENGINE_LOG_PATH_KEY
@@ -366,21 +366,22 @@ class SparkProcessBuilderSuite extends KerberizedTestHelper with MockitoSugar {
   }
 
   test("extract spark core scala version") {
+    val builder = new SparkProcessBuilder("kentyao", KyuubiConf(false))
     Seq(
       "spark-core_2.13-3.4.1.jar",
       "spark-core_2.13-3.5.0-abc-20230921.jar",
       "spark-core_2.13-3.5.0-xyz-1.2.3.jar",
       "spark-core_2.13-3.5.0.1.jar",
-      "spark-core_2.13.2-3.5.0.jar")
-      .foreach { f =>
-        assertResult("2.13")(sparkCoreScalaVersionRegex.findFirstMatchIn(f).get.group(1))
-      }
+      "spark-core_2.13.2-3.5.0.jar").foreach { f =>
+      assertResult("2.13")(builder.extractEngineScalaBinaryVersion(Seq(f)))
+    }
 
     Seq(
       "spark-dummy_2.13-3.5.0.jar",
       "spark-core_2.13-3.5.0.1.zip",
-      "yummy-spark-core_2.13-3.5.0.jar")
-      .foreach { f => assertNotMatches(f, sparkCoreScalaVersionRegex) }
+      "yummy-spark-core_2.13-3.5.0.jar").foreach { f =>
+      assertThrows[KyuubiException](builder.extractEngineScalaBinaryVersion(Seq(f)))
+    }
   }
 
   test("match scala version of spark home") {