diff --git a/openapi-sdk/pom.xml b/openapi-sdk/pom.xml
index e3d01c0..d6805c9 100644
--- a/openapi-sdk/pom.xml
+++ b/openapi-sdk/pom.xml
@@ -53,19 +53,37 @@
 
 
     <build>
+        <finalName>${project.artifactId}-${project.version}</finalName>
+
         <plugins>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.4.2</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-assembly-plugin</artifactId>
+                <version>3.7.1</version>
                 <configuration>
                     <archive>
                         <manifest>
                             <mainClass>cn.com.infosec.netsign.agent.Main</mainClass>
                         </manifest>
                     </archive>
+
                     <descriptorRefs>
                         <descriptorRef>jar-with-dependencies</descriptorRef>
                     </descriptorRefs>
+
+                    <appendAssemblyId>false</appendAssemblyId>
                 </configuration>
+
                 <executions>
                     <execution>
                         <id>make-assembly</id>
diff --git a/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java b/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java
index 814e987..63884a5 100644
--- a/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java
+++ b/openapi-sdk/src/main/java/cn/com/infosec/netsign/agent/PBCAgent2G.java
@@ -34,6 +34,12 @@ public class PBCAgent2G{
         this.properties = SignServerPropertiesLoader.getProperties();
     }
 
+    public PBCAgent2G(boolean usingSingleServiceList) {
+        this.okHttpClient = OkHttpClientHolder.getClient();
+        this.objectMapper = new ObjectMapper();
+        this.properties = SignServerPropertiesLoader.getProperties();
+    }
+
 
     public String rawSign(byte[] origBytes, String dn) {