RFR: 7526: JMC not buildable with jdk17 [v4]

[Jean-Philippe Bempel]

On Tue, 18 Jan 2022 14:58:11 GMT, Johannes Bechberger <duke at openjdk.java.net> wrote:

>> Tested on Java 11 x86 and aarch64 (azul, but only builds), and on Java 17 x86 and aarch64.
>
> Johannes Bechberger has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Improve devguide
>  - Update jetty versions

releng/platform-definitions/platform-definition-2021-12/platform-definition-2021-12.target line 5:

> 3:    Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
> 4:    Copyright (c) 2022, Datadog, Inc. All rights reserved.
> 5:    Copyright (c) 2022, SAP, SE. All rights reserved.

I think you can only add this line only if you introduce a new file in the repository.

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PR: https://git.openjdk.java.net/jmc/pull/363