[dubbo] branch 3.0 updated: fix destroy reference cause NPE (#10050)

[crazyhzm]

This is an automated email from the ASF dual-hosted git repository.

crazyhzm pushed a commit to branch 3.0
in repository https://gitbox.apache.org/repos/asf/dubbo.git


The following commit(s) were added to refs/heads/3.0 by this push:
     new a57394a85c fix destroy reference cause NPE (#10050)
a57394a85c is described below

commit a57394a85c90b450393755646e6467020f45de90
Author: huazhongming <crazy...@gmail.com>
AuthorDate: Wed May 18 17:15:35 2022 +0800

    fix destroy reference cause NPE (#10050)
    
    Signed-off-by: crazyhzm <crazy...@gmail.com>
---
 .../main/java/org/apache/dubbo/config/utils/SimpleReferenceCache.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git 
a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/utils/SimpleReferenceCache.java
 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/utils/SimpleReferenceCache.java
index 34aae97d1a..f97bf1655e 100644
--- 
a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/utils/SimpleReferenceCache.java
+++ 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/utils/SimpleReferenceCache.java
@@ -260,7 +260,9 @@ public class SimpleReferenceCache implements ReferenceCache 
{
 
     private void destroyReference(ReferenceConfigBase<?> rc) {
         Destroyable proxy = (Destroyable) rc.get();
-        proxy.$destroy();
+        if (proxy != null){
+            proxy.$destroy();
+        }
         rc.destroy();
     }