From 21df2de8a86339fd46d25e526262e6df1b1f393c Mon Sep 17 00:00:00 2001
From: guoshupei <15764973965@163.com>
Date: Sun, 19 Nov 2023 12:33:53 +0800
Subject: [PATCH] bugfix `head of empty list` again

---
 .../linkis/common/utils/CodeAndRunTypeUtils.scala    | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/linkis-commons/linkis-common/src/main/scala/org/apache/linkis/common/utils/CodeAndRunTypeUtils.scala b/linkis-commons/linkis-common/src/main/scala/org/apache/linkis/common/utils/CodeAndRunTypeUtils.scala
index 3870fe6e58..cf40f9a349 100644
--- a/linkis-commons/linkis-common/src/main/scala/org/apache/linkis/common/utils/CodeAndRunTypeUtils.scala
+++ b/linkis-commons/linkis-common/src/main/scala/org/apache/linkis/common/utils/CodeAndRunTypeUtils.scala
@@ -18,9 +18,10 @@
 package org.apache.linkis.common.utils
 
 import org.apache.linkis.common.conf.CommonVars
-
 import org.apache.commons.lang3.StringUtils
 
+import scala.collection.mutable
+
 object CodeAndRunTypeUtils {
   private val CONF_LOCK = new Object()
 
@@ -101,7 +102,14 @@ object CodeAndRunTypeUtils {
   def getLanguageTypeAndCodeTypeRelationMap: Map[String, String] = {
     val codeTypeAndRunTypeRelationMap = getCodeTypeAndLanguageTypeRelationMap
     if (codeTypeAndRunTypeRelationMap.isEmpty) Map()
-    else codeTypeAndRunTypeRelationMap.flatMap(x => x._2.map(y => (y, x._1)))
+    else {
+//      codeTypeAndRunTypeRelationMap.flatMap(x => x._2.map(y => (y, x._1)))
+      val map = mutable.Map[String, String]()
+      codeTypeAndRunTypeRelationMap.foreach(kv => {
+        kv._2.foreach(v => map.put(v, kv._1))
+      })
+      map.toMap
+    }
   }
 
   def getLanguageTypeByCodeType(codeType: String, defaultLanguageType: String = ""): String = {