[SPARK-28106][SQL] When Spark SQL use "add jar" , before add to SparkContext, check jar path exist first.

core/src/main/scala/org/apache/spark/SparkContext.scala

@@ -1775,7 +1775,7 @@ class SparkContext(config: SparkConf) extends Logging {
    * @note A path can be added only once. Subsequent additions of the same path are ignored.
    */
   def addJar(path: String) {
-    def addJarFile(file: File): String = {
+    def addLocalJarFile(file: File): String = {
       try {
         if (!file.exists()) {
           throw new FileNotFoundException(s"Jar ${file.getAbsolutePath} not found")
@@ -1792,12 +1792,36 @@ class SparkContext(config: SparkConf) extends Logging {
       }
     }
 
+    def addRemoteJarFile(path: String): String = {
+      val hadoopPath = new Path(path)
+      val scheme = new URI(path).getScheme
+      if (!Array("http", "https", "ftp").contains(scheme)) {
+        try {
+          val fs = hadoopPath.getFileSystem(hadoopConfiguration)
+          if (!fs.exists(hadoopPath)) {
+            throw new FileNotFoundException(s"Jar ${path} not found")
+          }
+          if (fs.isDirectory(hadoopPath)) {
+            throw new IllegalArgumentException(
+              s"Directory ${path} is not allowed for addJar")
+          }
+          path
+        } catch {
+          case NonFatal(e) =>
+            logError(s"Failed to add $path to Spark environment", e)
+            null
+        }
+      } else {
+        path
+      }
+    }
+
     if (path == null) {
       logWarning("null specified as parameter to addJar")
     } else {
       val key = if (path.contains("\\")) {
         // For local paths with backslashes on Windows, URI throws an exception
-        addJarFile(new File(path))
+        addLocalJarFile(new File(path))
       } else {
         val uri = new URI(path)
         // SPARK-17650: Make sure this is a valid URL before adding it to the list of dependencies
@@ -1806,12 +1830,12 @@ class SparkContext(config: SparkConf) extends Logging {
           // A JAR file which exists only on the driver node
           case null =>
             // SPARK-22585 path without schema is not url encoded
-            addJarFile(new File(uri.getRawPath))
+            addLocalJarFile(new File(uri.getRawPath))
           // A JAR file which exists only on the driver node
-          case "file" => addJarFile(new File(uri.getPath))
+          case "file" => addLocalJarFile(new File(uri.getPath))
           // A JAR file which exists locally on every worker node
           case "local" => "file:" + uri.getPath
-          case _ => path
+          case _ => addRemoteJarFile(path)
         }
       }
       if (key != null) {

core/src/test/scala/org/apache/spark/SparkContextSuite.scala

@@ -165,6 +165,17 @@ class SparkContextSuite extends SparkFunSuite with LocalSparkContext with Eventu
     }
   }
 
+  test("add hdfs jar files not exists") {
+    try {
+      val jarPath = "hdfs:///no/path/to/TestUDTF.jar"
+      sc = new SparkContext(new SparkConf().setAppName("test").setMaster("local"))
+      sc.addJar(jarPath)
+      assert(sc.listJars().forall(!_..contains("TestUDTF.jar")))
+    } finally {
+      sc.stop()
+    }
+  }
+
   test("SPARK-17650: malformed url's throw exceptions before bricking Executors") {
     try {
       sc = new SparkContext(new SparkConf().setAppName("test").setMaster("local"))