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Re: Java licensing

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On 2018-12-14 03:10, Arne Vajhøj wrote:
> On 12/13/2018 9:05 PM, Arne Vajhøj wrote:
>> On 12/13/2018 8:48 PM, Rhino wrote:
>>> I'm late to the party on this one but I'm hoping to catch up....
>>>
>>> I saw messages to the effect that Java licensing is changing several
>>> months back when I last updated my Java 8.* JDK but hadn't taken the
>>> time to look into it. Tonight, I realized my version of Eclipse on
>>> this machine was getting pretty dated and decided to update it to
>>> Eclipse 2018-09. When I launched the new version, it converted my
>>> workspace, as uual, and immediately broke all my JavaFX code. Every
>>> single JavaFX import was suddenly invalid. I decided to install the
>>> latest Java 10 JDK, only to find that JDK 10 is already out of
>>> support so I found the current JDK for Java 11. Before downloading
>>> it, I saw the important notice about the licensing and finally read it.
>>>
>>> The bit that caught my eye was that it only allowed me to write demos
>>> with it; I could NOT write code for my own personal use or to support
>>> a very low-traffic website used by a club I'm in, as I have been
>>> doing for a while now. Well, I suppose there *is* a way but I'm
>>> guessing it involves giving someone money for the privilege. The
>>> license agreement doesn't talk about this so my first question is:
>>> how do I get the right to use the code I've written for my own
>>> personal use and to support my club's website?
>>>
>>> The Oracle website said another option I had was to use the Java 11
>>> under a GPL license, which seems like it would allow what I want to
>>> do. So I downloaded the Open JDK for Java 11 but I'm darned if I can
>>> figure out how to coax Eclipse to use it; it doesn't contain a JRE
>>> and that's what Eclipse wants. So, my second question is: can I get
>>> Eclipse to use the Open JDK and, if so, how?
>>
>> re license)
>>
>> Oracle Java and OpenJDK are practically the same code base.
>>
>> Java <= 10 worked like:
>>
>> paid Oracle Java - support almost forever
>> free Oracle Java - support N years
>> open source OpenJDK - support for N years
>>
>> Java >=11 simplified that:
>>
>> paid Oracle Java - support almost forever
>> open source OpenJDK - support for 0.5/N years
>>
>> So you need to take OpenJDK if you don't want to pay.
>>
>> And Eclipse works fine with OpenJDK.
>>
>> re support)
>>
>> Java <= 8 worked like:
>> * new version every 2-3 years
>> * all versions similar in support
>>
>> Java >= 9 works like:
>>
>> * new version every 6 months
>> * every third version is LTS (long term support)
>> * non-LTS versions are supported 6 months
>> * LTS versions are supported 3 years
>>
>> If you are not interested in frequent upgrades you will
>> want to only take LTS versions.
>>
>> So you will upgrade 8 -> 11 -> 14 -> 17 -> 20.
>>
>> re JavaFX)
>>
>> JavaFX status is a bit messy.
>>
>> Java 6 & 7 : separate download
>> Java 8     : bundled with Oracle Java, no modules
>> Java 9, 10 : bundled with Oracle Java, modules
>> Java 11    : separate download
>>
>> So for Java 11 you need to download JavaFX.
>>
>> Link:
>>     https://openjfx.io/
> 
> Just one more note.
> 
> OpenJDK is available under "GPL with classpath exception" not "GPL".
> 
> It makes a difference.
> 
> Arne

> So I downloaded the Open JDK for Java 11 but I'm darned if I can figure out how to coax Eclipse to use it; it doesn't contain a JRE and that's what Eclipse wants. So, my second question is: can I get Eclipse to use the Open JDK and, if so, how? 

In addition to what Arne said, it was somewhere between Java 8
(exclusive) and Java 11 that they've restructured the JDK. There isn't a
separate JRE folder anymore (with its own binaries). I assume Eclipse
should be able to handle that - I don't know, I don't use it. But it's
as designed.

They're also pushing devs to bundle the dependencies in the apps
themselves with jlink:
<https://docs.oracle.com/javase/9/tools/jlink.htm>. Not that you
strictly need to, as far as I can tell, if you have the JDK installed.
But you'll notice there's no separate JRE download for Java 9+.

-- 
DF.

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Java licensing Rhino <no_offline_contact@example.com> - 2018-12-13 20:48 -0500
  Re: Java licensing Arne Vajhøj <arne@vajhoej.dk> - 2018-12-13 21:05 -0500
    Re: Java licensing Arne Vajhøj <arne@vajhoej.dk> - 2018-12-13 21:10 -0500
      Re: Java licensing Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2018-12-14 10:42 +0100
        Re: Java licensing Eric Douglas <e.d.programmer@gmail.com> - 2018-12-14 06:24 -0800

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