[dubbo] branch 3.0 updated: Use String Intern to reduce memory allocation (#7671)

[liujun]

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

liujun 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 7c8b658  Use String Intern to reduce memory allocation (#7671)
7c8b658 is described below

commit 7c8b658e40b4d81ef00d6b7237330f9e4e00984a
Author: Albumen Kevin <jhq0...@gmail.com>
AuthorDate: Fri May 14 13:12:08 2021 +0800

    Use String Intern to reduce memory allocation (#7671)
---
 .../src/main/java/org/apache/dubbo/common/BaseServiceMetadata.java      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/dubbo-common/src/main/java/org/apache/dubbo/common/BaseServiceMetadata.java 
b/dubbo-common/src/main/java/org/apache/dubbo/common/BaseServiceMetadata.java
index 27893cd..f8a6516 100644
--- 
a/dubbo-common/src/main/java/org/apache/dubbo/common/BaseServiceMetadata.java
+++ 
b/dubbo-common/src/main/java/org/apache/dubbo/common/BaseServiceMetadata.java
@@ -42,7 +42,7 @@ public class BaseServiceMetadata {
         if (version != null && version.length() > 0) {
             buf.append(":").append(version);
         }
-        return buf.toString();
+        return buf.toString().intern();
     }
 
     public static String versionFromServiceKey(String serviceKey) {