diff --git a/eventmesh-sdk-java/build.gradle b/eventmesh-sdk-java/build.gradle
index 6e6f45ffa1..9e13a6ff87 100644
--- a/eventmesh-sdk-java/build.gradle
+++ b/eventmesh-sdk-java/build.gradle
@@ -15,6 +15,8 @@
  * limitations under the License.
  */
 
+def grpcVersion = '1.15.0'
+
 dependencies {
     implementation project(":eventmesh-common")
 
@@ -26,10 +28,10 @@ dependencies {
     implementation "io.netty:netty-all"
     implementation "org.apache.httpcomponents:httpclient"
 
-    implementation "io.grpc:grpc-protobuf:1.15.0"
-    implementation "io.grpc:grpc-stub:1.15.0"
-    implementation "io.grpc:grpc-netty:1.15.0"
-    implementation "io.grpc:grpc-netty-shaded:1.15.0"
+    implementation "io.grpc:grpc-protobuf:${grpcVersion}"
+    implementation "io.grpc:grpc-stub:${grpcVersion}"
+    implementation "io.grpc:grpc-netty:${grpcVersion}"
+    implementation "io.grpc:grpc-netty-shaded:${grpcVersion}"
 
     testImplementation project(":eventmesh-common")
 
diff --git a/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/Publisher.java b/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/Producer.java
similarity index 71%
rename from eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/Publisher.java
rename to eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/Producer.java
index 9b8909fac2..988238ed4e 100644
--- a/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/Publisher.java
+++ b/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/Producer.java
@@ -9,32 +9,31 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class Publisher {
+public class Producer {
 
-    private static Logger logger = LoggerFactory.getLogger(Publisher.class);
+    private static Logger logger = LoggerFactory.getLogger(Producer.class);
 
     private ClientConfig clientConfig;
 
     private ManagedChannel channel;
 
-    public Publisher(ClientConfig clientConfig) {
+    public Producer(ClientConfig clientConfig) {
         this.clientConfig = clientConfig;
     }
 
     public void start() {
-        channel = ManagedChannelBuilder
-                .forAddress(clientConfig.getServerAddr(), clientConfig.getServerPort())
+        channel = ManagedChannelBuilder.forAddress(clientConfig.getServerAddr(), clientConfig.getServerPort())
                 .usePlaintext().build();
     }
 
-    public void publish(String content) {
-        PublisherServiceGrpc.PublisherServiceBlockingStub publisherClient =
-                PublisherServiceGrpc.newBlockingStub(channel);
+    public boolean publish(String content) {
+        PublisherServiceGrpc.PublisherServiceBlockingStub publisherClient = PublisherServiceGrpc.newBlockingStub(channel);
 
         Message message = Message.newBuilder().setContent(content).build();
 
         Response response = publisherClient.publish(message);
         logger.info("===========" + response.getRespCode() + " " + response.getRespMsg());
+        return true;
     }
 
     public void stop() {
diff --git a/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/config/ClientConfig.java b/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/config/ClientConfig.java
index d31460d694..4703630d69 100644
--- a/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/config/ClientConfig.java
+++ b/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/grpc/config/ClientConfig.java
@@ -165,7 +165,7 @@ public String toString() {
                 .append("pid=").append(pid).append(",")
                 .append("sys=").append(sys).append(",")
                 .append("userName=").append(userName).append(",")
-                .append("password=").append(password).append(",")
+                .append("password=").append("***").append(",")
                 .append("useTls=").append(useTls).append("}");
         return sb.toString();
     }
diff --git a/eventmesh-sdk-java/src/test/java/org/apache/eventmesh/client/grpc/AsyncPublish.java b/eventmesh-sdk-java/src/test/java/org/apache/eventmesh/client/grpc/AsyncPublish.java
index bd737fe706..8c1e7665f4 100644
--- a/eventmesh-sdk-java/src/test/java/org/apache/eventmesh/client/grpc/AsyncPublish.java
+++ b/eventmesh-sdk-java/src/test/java/org/apache/eventmesh/client/grpc/AsyncPublish.java
@@ -25,7 +25,7 @@ public static void main(String[] args) throws Exception {
                 .setSys("1234")
                 .setPid(String.valueOf(ThreadUtil.getPID()));
 
-        Publisher publisher = new Publisher(clientConfig);
+        Producer publisher = new Producer(clientConfig);
 
         publisher.start();
         publisher.publish("hello world grpc!!");