[KYUUBI apache#6531] Fix SPARK-EngineTab stop/gracefulstop not work

# 🔍 Description
## Issue References 🔗

This pull request fixes apache#6531

## Describe Your Solution 🔧

Fix SPARK-EngineTab stop/gracefulstop not work

## Types of changes 🔖

- [x] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)

## Test Plan 🧪

#### Behavior Without This Pull Request ⚰️

#### Behavior With This Pull Request 🎉

#### Related Unit Tests

---

# Checklist 📝

- [ ] This patch was not authored or co-authored using [Generative Tooling](https://www.apache.org/legal/generative-tooling.html)

**Be nice. Be informative.**

Closes apache#6533 from promising-forever/patch-1.

Closes apache#6531

66be0fd [promising-forever] [KYUUBI apache#6531] Fix SPARK-EngineTab stop/gracefulstop not work

Authored-by: promising-forever <79634622+promising-forever@users.noreply.github.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>

externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/spark/ui/EngineTab.scala

@@ -105,24 +105,26 @@ case class EngineTab(
         .buildChecked(ui)
 
       if (SPARK_ENGINE_RUNTIME_VERSION >= "4.0") {
-        attachHandlerMethod.invoke {
-          val createRedirectHandlerMethod = DynMethods.builder("createRedirectHandler")
-            .impl(
-              JettyUtils.getClass,
-              classOf[String],
-              classOf[String],
-              classOf[jakarta.servlet.http.HttpServletRequest => Unit],
-              classOf[String],
-              classOf[Set[String]])
-            .buildChecked(JettyUtils)
+        val createRedirectHandlerMethod = DynMethods.builder("createRedirectHandler")
+          .impl(
+            JettyUtils.getClass,
+            classOf[String],
+            classOf[String],
+            classOf[jakarta.servlet.http.HttpServletRequest => Unit],
+            classOf[String],
+            classOf[Set[String]])
+          .buildChecked(JettyUtils)
 
+        attachHandlerMethod.invoke {
           val killHandler =
             (_: jakarta.servlet.http.HttpServletRequest) => handleKill()
-          val gracefulKillHandler =
-            (_: jakarta.servlet.http.HttpServletRequest) => handleGracefulKill()
-
           createRedirectHandlerMethod
             .invoke("/kyuubi/stop", "/kyuubi", killHandler, "", Set("GET", "POST"))
+        }
+
+        attachHandlerMethod.invoke {
+          val gracefulKillHandler =
+            (_: jakarta.servlet.http.HttpServletRequest) => handleGracefulKill()
           createRedirectHandlerMethod
             .invoke("/kyuubi/gracefulstop", "/kyuubi", gracefulKillHandler, "", Set("GET", "POST"))
         }
@@ -140,11 +142,14 @@ case class EngineTab(
         attachHandlerMethod.invoke {
           val killHandler =
             (_: javax.servlet.http.HttpServletRequest) => handleKill()
-          val gracefulKillHandler =
-            (_: javax.servlet.http.HttpServletRequest) => handleGracefulKill()
 
           createRedirectHandlerMethod
             .invoke("/kyuubi/stop", "/kyuubi", killHandler, "", Set("GET", "POST"))
+        }
+
+        attachHandlerMethod.invoke {
+          val gracefulKillHandler =
+            (_: javax.servlet.http.HttpServletRequest) => handleGracefulKill()
           createRedirectHandlerMethod
             .invoke("/kyuubi/gracefulstop", "/kyuubi", gracefulKillHandler, "", Set("GET", "POST"))
         }