[maven-release-plugin] prepare release java-5.2.1 (#1278)

java/client-apis/pom.xml

diff --git a/java/client-apis/pom.xml b/java/client-apis/pom.xml
index 937edf9..ccf7e6c 100644
--- a/java/client-apis/pom.xml
+++ b/java/client-apis/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <artifactId>rocketmq-client-java-parent</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>5.2.1-SNAPSHOT</version>
+        <version>5.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

java/client-shade/pom.xml

diff --git a/java/client-shade/pom.xml b/java/client-shade/pom.xml
index d9c4a37..34d1a58 100644
--- a/java/client-shade/pom.xml
+++ b/java/client-shade/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <artifactId>rocketmq-client-java-parent</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>5.2.1-SNAPSHOT</version>
+        <version>5.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

java/client/pom.xml

diff --git a/java/client/pom.xml b/java/client/pom.xml
index c6ea90b..4ae2602 100644
--- a/java/client/pom.xml
+++ b/java/client/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <artifactId>rocketmq-client-java-parent</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>5.2.1-SNAPSHOT</version>
+        <version>5.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

java/pom.xml

diff --git a/java/pom.xml b/java/pom.xml
index d60c6d5..c8313b8 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -26,7 +26,7 @@
     <groupId>org.apache.rocketmq</groupId>
     <artifactId>rocketmq-client-java-parent</artifactId>
     <packaging>pom</packaging>
-    <version>5.2.1-SNAPSHOT</version>
+    <version>5.2.1</version>
     <modules>
         <module>client-apis</module>
         <module>client</module>

java/test/pom.xml

diff --git a/java/test/pom.xml b/java/test/pom.xml
index 7708e41..9ee3802 100644
--- a/java/test/pom.xml
+++ b/java/test/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-client-java-parent</artifactId>
-        <version>5.2.1-SNAPSHOT</version>
+        <version>5.2.1</version>
     </parent>
 
     <artifactId>test</artifactId>