diff --git a/agent/pom.xml b/agent/pom.xml
index 6923065..eb4e0b2 100644
--- a/agent/pom.xml
+++ b/agent/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>copagent</artifactId>
         <groupId>code.landgrey</groupId>
-        <version>1.0-SNAPSHOT</version>
+        <version>1.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/cop/src/main/java/code/landgrey/copagent/Cop.java b/cop/src/main/java/code/landgrey/copagent/Cop.java
index b755010..4da80c9 100644
--- a/cop/src/main/java/code/landgrey/copagent/Cop.java
+++ b/cop/src/main/java/code/landgrey/copagent/Cop.java
@@ -20,15 +20,22 @@ public class Cop {
         String filterClassName = "[unknown]";
         String attach_jar_path = null;
         String current_jar_path = PathUtils.getCurrentJarPath();
+//        AnsiLog.info("current_jarPth: " + current_jar_path);
+        AnsiLog.info("Java version: "+ JavaVersionUtils.javaVersionStr());
         HashMap<String, String> version_info = ProjectVersionUtils.get_version_info();
 
         // add "-Xbootclasspath/a" command line start cop.jar
-        boolean is_boot_start = ManagementFactory.getRuntimeMXBean().getInputArguments().toString().contains("-Xbootclasspath/a");
+        AnsiLog.info("args length: "+args.length);
 
-        if(is_boot_start){
+        List<String> argsList = Arrays.asList(args);
+
+        boolean is_boot_start = argsList.contains("bootstart_flag");
+        boolean is_greater_than_jre9 = argsList.contains("greater_than_jdk9_flag");
+
+        if(is_boot_start || is_greater_than_jre9 ){
             jvm_pid = args[0];
             attach_jar_path = args[1];
-            if(args.length == 3){
+            if(args.length >= 3){
                 filterClassName = args[2];
             }
             AnsiLog.info("Try to attach process " + jvm_pid + ", please wait a moment ...");
diff --git a/cop/src/main/java/code/landgrey/copagent/utils/ProcessUtils.java b/cop/src/main/java/code/landgrey/copagent/utils/ProcessUtils.java
index 7500b19..adc97fd 100644
--- a/cop/src/main/java/code/landgrey/copagent/utils/ProcessUtils.java
+++ b/cop/src/main/java/code/landgrey/copagent/utils/ProcessUtils.java
@@ -335,6 +335,11 @@ public class ProcessUtils {
 
         command.addAll(attachArgs);
 
+        if (!JavaVersionUtils.isLessThanJava9())
+            command.add("greater_than_jdk9_flag");
+        if (toolsJar != null && toolsJar.exists())
+            command.add("bootstart_flag");
+
         ProcessBuilder pb = new ProcessBuilder(command);
 
         try {