Assumptions

You are using IntelliJ to work with the NoSQLBench code base.
You want IntelliJ to automatically apply the license files when needed on files you edit.

Steps

Enable the bundled copyright plugin
Under File | Settings | Editor | Copyright | Copyright Profiles, add one named 'aplv2'.

Set the copyright text (velocity template) to:

Copyright (c) $originalComment.match("Copyright \(c\) (\d+)", 1, "-", "$today.year")$today.year nosqlbench

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.

Set the Regex to detect copyright in comments to:

.*Licensed under the Apache License, Version 2.0.*

You can click the validate button to confirm that the velocity template works.