From 43ffcc5012eaf6db8f0f7827f0493a7be3b71eb0 Mon Sep 17 00:00:00 2001
From: Lei Zhang <27994433+SWJTU-ZhangLei@users.noreply.github.com>
Date: Fri, 17 Nov 2023 11:13:07 +0800
Subject: [PATCH] [fix](fe) Fix `enable_nereids_planner` forward not take
 effect (#26782)

* The java reflection method `getFields()` only return public fields,
  but enable_nereids_planner is private
---
 .../src/main/java/org/apache/doris/qe/SessionVariable.java     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java b/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
index 3cc5bd4558..5c8fb7d566 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
@@ -2670,8 +2670,9 @@ public class SessionVariable implements Serializable, Writable {
      **/
     public void setForwardedSessionVariables(Map<String, String> variables) {
         try {
-            Field[] fields = SessionVariable.class.getFields();
+            Field[] fields = SessionVariable.class.getDeclaredFields();
             for (Field f : fields) {
+                f.setAccessible(true);
                 VarAttr varAttr = f.getAnnotation(VarAttr.class);
                 if (varAttr == null || !varAttr.needForward()) {
                     continue;