diff --git a/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/types/WebMessageCompatExt.ets b/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/types/WebMessageCompatExt.ets
index 604f1cde5cd2789d91ce29f1cc92d743981e0e26..d00275cb3705c0a1210e4bae05bfc0befbf917ea 100644
--- a/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/types/WebMessageCompatExt.ets
+++ b/flutter_inappwebview_ohos/ohos/src/main/ets/components/plugin/types/WebMessageCompatExt.ets
@@ -49,7 +49,7 @@ export default class WebMessageCompatExt {
     let type: number = map.get("type") as number
     let portMapList: List<Map<string, Any>> = map.get("ports") as List<Map<string, Any>>
     let ports: List<WebMessagePortCompatExt> | null = null;
-    if (portMapList != null && !portMapList.isEmpty()) {
+    if (portMapList != null && portMapList.length > 0 ) {
       ports = new List<WebMessagePortCompatExt>();
       for (let i = 0; i < portMapList.length; i++) {
         ports.add(WebMessagePortCompatExt.fromMap(portMapList[i]));