refactor: new array list

libs/lpac-jni/src/main/jni/lpac-jni/lpac-discovery.c

@@ -117,6 +117,10 @@ Java_net_typeblog_lpac_1jni_LpacJni_discoveryProfile(
     // callback.onDiscovered(addresses);
     (*env)->CallVoidMethod(env, callback, on_discovered, addresses);
 
+    (*env)->DeleteLocalRef(env, array_list_class);
+    (*env)->DeleteLocalRef(env, array_list_constructor);
+    (*env)->DeleteLocalRef(env, add_element);
+
     out:
 
     if (_imei != NULL) (*env)->ReleaseStringUTFChars(env, imei, _imei);