static @Nullable JSQueryPool create(@NotNull JBCefClient client) {
      int poolSize = client.myPropertiesHelper.intValue(Properties.JS_QUERY_POOL_SIZE, JS_QUERY_POOL_DEFAULT_SIZE);
      if (poolSize > 0) {
        poolSize = Math.min(poolSize, JS_QUERY_POOL_MAX_SIZE);
        return new JSQueryPool(client, poolSize);
      }
      return null;
    }
static @Nullable JSQueryPool create(@NotNull JBCefClient client)