Fix portstats cli for json output.

Jira Id: ONOS-8134

Change-Id: If0f33d1eee230f6ceebf57acebfc81aef599e03c
diff --git a/cli/src/test/java/org/onosproject/cli/package-info.java b/cli/src/test/java/org/onosproject/cli/package-info.java
new file mode 100644
index 0000000..212c946
--- /dev/null
+++ b/cli/src/test/java/org/onosproject/cli/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2021-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Administrative console command-line extensions test.
+ */
+package org.onosproject.cli;
\ No newline at end of file