On 05/18/2015 02:12 PM, Mikolaj Izdebski wrote:
On 05/18/2015 10:15 AM, Jiri Vanek wrote:
> On 05/18/2015 08:29 AM, Aleksandar Kurtakov wrote:
>> ----- Original Message -----
>>> From: "Mikolaj Izdebski" <mizdebsk(a)redhat.com
>>> To: "Fedora Java Development List"
>>> Sent: Monday, 18 May, 2015 8:07:15 AM
>>> Subject: [fedora-java] Proposal to deprecate _prefer_jre
>>> _prefer_jre is
environmental variable, which once set to true causes
>>> javapackages-tools to prefer JRE over JDK when choosing JVM to use.
>>> _prefer_jre was most
useful in multi-JVM scenario. For example when
>>> there was JDK 1.5 and JRE 1.7 installed, javapackages-tools would choose
>>> JDK 1.5 by default. Setting _prefer_jre=true would allow more recent JRE
>>> 1.7 to be used instead.
>>> Currently in Fedora
there is only one Java implementation. Moreover,
>>> with Java 9 distinction between JDK and JRE becomes less clear.
>>> Therefore I propose to deprecate _prefer_jre environmental variable and
>>> remove it in a future release of javapackages-tools, in a year or so.
>>> Any objections or
>> +1 . It's not widely used and is yet another
reason for unpredictability.
> I don't understand this
> With https://bugzilla.redhat.com/show_bug.cgi?id=1098508
in mind - why
> to abandon it?
> I'm not exactly against this proposal, but I still have an feeling
> that there is underlying issue in java packages or in jtools.
> The correct approach, if jre + sdk separation will be
kept, should be:
> only jre installed - use jre
> sdk installed (jre installed as dependence) :
> - application requires jre - use jre
> - application rewires devel, use jdk
There is no harm in using full SDK even if the app would work fine with
But it is
terribly strange, when one have set different jre and different sdk. And still
applications will be using only chosen JDK. (usbted chosen JRE)
just JRE. But I'm fine with keeping existing behaviour if there
doubts about deprecating it.
I do not wont to stay against this change if it was found unused or whatwer.
> Now - jdk9 ... is different. Maybe something can be done better so
> jtools nor java apps suffer by above logic.
We can go furnther and avoid using alternatives at all and instead rely
on config file /etc/java/java.conf for specifying default JVM to use.
This could be considered after Java 9 is default in Fedora.
Hm. I think altrnatives are bit better then config file imho...
But yes - thats where I'm pointing to - the alternatives,a s designed long ago, do
not seem to fit
current sate of Fedora. Maybe even separation of java supbackages is becoming useless.
So .. What can *openjdk* do better?