> application, a developer has preinstalled the JDK (or using a manager of
> some kind to install it - so not something we're forcing upon them).  In

No. To running a Java Application in a normal way, the JRE is
required. Saying "not something we're forcing upon them" sounds
sophistry.

Best,
tison.

tison <wander4...@gmail.com> 于2023年12月28日周四 00:27写道:
>
> Hi John,
>
> Glad to hear your feedback. Reply inline:
>
> > In the case of JMH, the repository I linked above forces the user to 
> > download
> > the additional dependency from maven central (or similar repository) rather
> > than relying on the system preinstalled library.
>
> From a technical view, this is not true because you can download the
> libs manually and place them under MAVEN_HOME. Then it can be regarded
> as a "system preinstalled library". It's the same as download JDK and
> place them under JAVA_HOME.
>
> > you can't use org.openjdk.jmh:* as a compile/test compile
> > dependency in your project
>
> fury-benchmark is not released in binary form. But we can of course
> make it an optional dependency (or the entire module optionally)
> behind a profile and deactivated by default so that it's the same as
> how ASF projects can optionally depend on MySQL Connector Java under
> the same license.
>
> A related discussion can be found at [1].
>
> >> THEY MAY BE RELIED UPON WHEN THEY SUPPORT AN OPTIONAL FEATURE
> >> "Will the majority of users want to use my product without adding the 
> >> optional components?"
>
> No. Benchmark is for testing; most users don't even know it and cannot
> depend on it as a Maven artifact.
>
> P.S.
> > don't approach things as "TLP [x] does it this way so
> > it must be the preferred way"
> Yeah .. Even I don't think Flink did it correctly, this expression
> increases confusion. Most readers don't have the context to understand
> the referred case. I'll avoid it.
>
> Best,
> tison.
>
> [1] https://issues.apache.org/jira/browse/LEGAL-437
>
> John D. Ament <johndam...@apache.org> 于2023年12月27日周三 23:57写道:
> >
> > On Tue, Dec 26, 2023 at 8:09 PM tison <wander4...@gmail.com> wrote:
> >
> > > Hi,
> > >
> > > The new podling Fury depends on jmh[1] which is licensed under GPLv2
> > > with "CLASSPATH" EXCEPTION.
> > >
> >
> > Just to confirm, are you referring to the code under [benchmark]?
> >
> >
> > >
> > > IIRC Flink ever factored out its benchmark code into a separate repo
> > > [2] to comply with ASF's license policy [3].
> > >
> >
> > As a word of caution, don't approach things as "TLP [x] does it this way so
> > it must be the preferred way"
> >
> >
> > >
> > > But since Fury doesn't modify jmh's code, just refers to some
> > > "org.openjdk.jmh." classes, I wonder if it's the same that a Java
> > > source file refers to JDK's classes under GPLv2 with "CLASSPATH"
> > > EXCEPTION.
> > >
> > > Or, we can exclude the benchmark code from the release like [4] but
> > > still hold it in the VCS.
> > >
> >
> > There's a difference between the GPL+CPE Cat X ruling we list on our
> > license website and how you're using JMH.  When it comes to a Java
> > application, a developer has preinstalled the JDK (or using a manager of
> > some kind to install it - so not something we're forcing upon them).  In
> > the case of JMH, the repository I linked above forces the user to download
> > the additional dependency from maven central (or similar repository) rather
> > than relying on the system preinstalled library.
> >
> > It's probably worth a question to legal, but I'm inclined to believe the
> > answer is no, you can't use org.openjdk.jmh:* as a compile/test compile
> > dependency in your project but would be happy to be wrong about that.
> >
> >
> > >
> > > Best,
> > > tison.
> > >
> > > [1] https://github.com/openjdk/jmh?tab=GPL-2.0-1-ov-file
> > > [2] https://github.com/apache/flink-benchmarks
> > > [3] https://www.apache.org/legal/resolved.html
> > > [4] https://github.com/apache/incubator-opendal/blob/main/.gitattributes
> >
> >
> > [benchmark]:
> > https://github.com/apache/incubator-fury/tree/main/java/fury-benchmark
> >
> >
> > >
> > >
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> > >
> > >

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