Groups > comp.lang.java.programmer > #30939

Re: Oracle Java license question

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From	Sebastian <news@seyweiler.dyndns.org>
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Subject	Re: Oracle Java license question
Date	Tue, 27 Jan 2015 18:15:07 +0100
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Am 26.01.2015 16:46, schrieb Eric Sosman:
> On 1/26/2015 9:48 AM, Sebastian wrote:
>> I find license agrrements in English legal terms hard to understand.
>> Does anyone know: Am I allowed to take the source code of a Java class
>> included in Oracle JDK 8 SE, copy it to a new class, modify that new
>> class, and distribute the .class-file with a closed-source commercial
>> product? If so, under what conditions?
>
>      "I. SOURCE CODE. Software may contain source code that, unless
>      expressly licensed for other purposes, is provided solely for
>      reference purposes pursuant to the terms of this Agreement.
>      Source code may not be redistributed unless expressly provided
>      for in this Agreement."
>
> ... so I think the question would hinge on the extent and nature of your
> modifications.  If you start with a thousand-line .java file, keep five
> lines and replace the rest with your own work, you're probably fine.
> But if the modifications are small and/or trivial, you're very likely
> in trouble.  See Jerry Stuckle's response.
>
>      However, I'd suggest taking a step back: *Why* do you think this
> would be a desirable thing to do, if allowed?  Can you explain why the
> usual O-O ways of doing things (extension, composition) do not suffice
> in your case?  Why is the inherently risky "re-use by copy'n'paste" an
> attractive proposition?  What problem are you trying to solve?
>
I would like to replace (not overload) all methods in a certain class 
that have an int in their signature with analogous methods that have a 
long, where some of those methods delegate to a private instance of a 
nested class. No chance with O-O ways, I guess.

I'll take it to a lawyer. Perhaps this is a legitimate example of using 
source code for reference purposes.

-- Sebastian

Thread

Oracle Java license question Sebastian <news@seyweiler.dyndns.org> - 2015-01-26 15:48 +0100
  Re: Oracle Java license question Jerry Stuckle <jstucklex@attglobal.net> - 2015-01-26 10:11 -0500
  Re: Oracle Java license question Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-01-26 10:46 -0500
    Re: Oracle Java license question Sebastian <news@seyweiler.dyndns.org> - 2015-01-27 18:15 +0100
      Re: Oracle Java license question Martin Gregorie <martin@address-in-sig.invalid> - 2015-01-27 23:19 +0000
        Re: Oracle Java license question Nigel Wade <nmw@ion.le.ac.uk> - 2015-01-28 14:51 +0000
          Re: Oracle Java license question Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2015-01-28 11:28 -0600
          Re: Oracle Java license question Sebastian <news@seyweiler.dyndns.org> - 2015-01-28 18:46 +0100

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