bugfix:Fix NPE when getting branchType in a non-global transaction co…

…ntext (#6816)

changes/en-us/2.x.md

@@ -14,6 +14,7 @@ Add changes here for all PR submitted to the 2.x branch.
 - [[#6624](https://github.com/apache/incubator-seata/pull/6624)] fix Alibaba Dubbo convert error
 - [[#6627](https://github.com/apache/incubator-seata/pull/6627)] fix the issue of xaEnded not being reset
 - [[#6626](https://github.com/apache/incubator-seata/pull/6626)] fix hsf ConsumerModel convert error
+- [[#6816](https://github.com/apache/incubator-seata/pull/6816)] Fix NPE when getting branchType in a non-global transaction context
 - [[#6642](https://github.com/apache/incubator-seata/pull/6642)] codecov token not found
 - [[#6661](https://github.com/apache/incubator-seata/pull/6661)] fix `tableMeta` cache scheduled refresh issue
 - [[#6486](https://github.com/apache/incubator-seata/pull/6486)] fix mysql undo log update sql data more than max allowed packet
@@ -126,6 +127,6 @@ Thanks to these contributors for their code commits. Please report an unintended
 - [lightClouds917](https://github.com/lightClouds917)
 - [l81893521](https://github.com/l81893521)
 - [laywin](https://github.com/laywin)
-
+- [xingfudeshi](https://github.com/xingfudeshi)
 
 Also, we receive many valuable issues, questions and advices from our community. Thanks for you all.

changes/zh-cn/2.x.md

@@ -14,6 +14,7 @@
 - [[#6624](https://github.com/apache/incubator-seata/pull/6624)] 修复 Alibaba Dubbo 转换错误
 - [[#6627](https://github.com/apache/incubator-seata/pull/6627)] 修复 xaEnded 没有重置
 - [[#6626](https://github.com/apache/incubator-seata/pull/6626)] 修复 hsf ConsumerModel 转换错误
+- [[#6816](https://github.com/apache/incubator-seata/pull/6816)] 修复在非全局事务上下文中获取branchType时的NPE问题
 - [[#6640](https://github.com/apache/incubator-seata/pull/6640)] 优化codecov相关配置
 - [[#6642](https://github.com/apache/incubator-seata/pull/6642)] 修复codecov token找不到导致无法提交单测覆盖度报告
 - [[#6661](https://github.com/apache/incubator-seata/pull/6661)] 修复`tableMeta`缓存定时刷新失效问题
@@ -32,8 +33,7 @@
 - [[#6781](https://github.com/apache/incubator-seata/pull/6781)] 修复tc下线时,由于定时任务没有先关闭,导致下线后还会被注册上,需要靠namingserver的健康检查来下线的bug
 - [[#6797](https://github.com/apache/incubator-seata/pull/6797)] 当查询的集群地址为空时，获取可用的任意集群地址
 - [[#6800](https://github.com/apache/incubator-seata/pull/6800)] 使异常消息对所有数据库驱动程序通用
-- - [[#6812](https://github.com/apache/incubator-seata/pull/6812)] 修复切换事务分组和节点下线时namingserver没有实时感知和推送的bug
-
+- [[#6812](https://github.com/apache/incubator-seata/pull/6812)] 修复切换事务分组和节点下线时namingserver没有实时感知和推送的bug
 - [[#6759](https://github.com/apache/incubator-seata/pull/6759)] 修复跨库表主动刷新`tableMeta`的异常问题
 
 ### optimize:
@@ -128,8 +128,7 @@
 - [lightClouds917](https://github.com/lightClouds917)
 - [l81893521](https://github.com/l81893521)
 - [laywin](https://github.com/laywin)
-
-
+- [xingfudeshi](https://github.com/xingfudeshi)
 
 同时，我们收到了社区反馈的很多有价值的issue和建议，非常感谢大家。
 

compatible/src/main/java/io/seata/core/context/RootContext.java

@@ -16,6 +16,7 @@
  */
 package io.seata.core.context;
 
+
 import java.util.Map;
 
 import javax.annotation.Nonnull;
@@ -42,7 +43,11 @@ public class RootContext {
     public static final String KEY_BRANCH_TYPE = "TX_BRANCH_TYPE";
 
     private static BranchType convertIoSeata(org.apache.seata.core.model.BranchType branchType) {
-        return BranchType.get(branchType.name());
+        if (branchType == null) {
+            return null;
+        } else {
+            return BranchType.get(branchType.name());
+        }
     }
 
     /**