HEADER-DERRIVED.txt

Original work: copyright 1999-2004 The Apache Software Foundation
(http://www.apache.org/)

This project is based on the work licensed to the Apache Software 
Foundation (ASF) under one or more contributor license agreements.  
See the NOTICE file distributed with this work for additional 
information regarding copyright ownership.

Modified work: copyright 2013-2022 Valery Silaev (http://vsilaev.com)

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.