diff --git a/src/main/resources/xjar/xjar.go b/src/main/resources/xjar/xjar.go
index 956c69e..8369700 100644
--- a/src/main/resources/xjar/xjar.go
+++ b/src/main/resources/xjar/xjar.go
@@ -78,12 +78,30 @@ func main() {
 		xKey.password, {13, 10},
 	}, []byte{})
 	cmd := exec.Command(java, args...)
-	cmd.Stdin = bytes.NewReader(key)
+	
+	stdin, err := cmd.StdinPipe()
+	if err != nil {
+		fmt.Printf("[*] launch fail:%v", err)
+		return
+	}
+
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr
-	err = cmd.Run()
-	if err != nil {
-		panic(err)
+
+	if err = cmd.Start(); err != nil {
+		fmt.Printf("[*] launch start fail:%v", err)
+		return
+	}
+	
+	go func() {
+		stdin.Write(key)
+
+		io.Copy(stdin, os.Stdin)
+		fmt.Printf("[*] launch stdin over")
+	}()
+	
+	if err = cmd.Wait(); err != nil {
+		fmt.Printf("[*] launch exit with:%v", err)
 	}
 }