Clean-room implementation of Double::toString(double) and Float::toString(float)

Raffaello Giulietti raffaello.giulietti at
Tue Apr 17 08:22:35 UTC 2018

Thanks Mark,

in your position as the Chief Architect, Java Platform Group at Oracle, 
I take yours as the most authoritative answer I've got so far.

Tomorrow I should find the time to finally upload the code.

Thanks to everybody who kindly replied to this thread.


On 2018-04-17 00:52, mark.reinhold at wrote:
> 2018/4/12 1:12:36 -0700, raffaello.giulietti at
>> my code is now ready to be uploaded to the OpenJDK reps. Currently it
>> resides on GitHub and is under the "GPLv2 + Classpath Exception"
>> license, with myself as the copyright holder.
>> I asked Oracle about how the copyright notice should be adapted to meet
>> the OCA requirements but, as of today, I got no answer.
>> Is there any official reference about the copyright notice on OpenJDK
>> contributions?
> For library code, the template is in $JDK/make/templates/gpl-cp-header [1].
> It begins:
>    Copyright (c) %YEARS% Oracle and/or its affiliates. All rights reserved.
>    This code is free software; you can redistribute it and/or modify it
>    under the terms of the GNU General Public License version 2 only, as
>    ...
> You can just use the Oracle copyright line or, at your option, replace
> it with your own.  In any case %YEARS% should be replaced with the year
> in which the file was created, and if it was modified in any later year
> then the creation year should be followed by the latest year in which
> the file was modified, separated by a comma.
> (We can better advise you on the details once we see the actual code.)
> - Mark
> [1]

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