[CentOS] java 1.6 and 1.7 on CentOS

Wed Aug 20 13:25:11 UTC 2014
Toralf Lund <toralf.lund at pgs.com>

On 19/08/14 20:33, John R Pierce wrote:
> On 8/19/2014 5:16 AM, Liam O'Toole wrote:
>> On 2014-08-19, Carson Chittom<carson at wistly.net>  wrote:
>>>> Asma rabe<asma.rabe at gmail.com>  writes:
>>>>
>>>>>> If i should install both java 1.6 and 1.7 , how to do that ?
>>>> I don't know whether you*should*  do it, not knowing much about your
>>>> setup, but assuming CentOS 7, I think you can install both the
>>>> java-1.6.0-openjdk and java-1.7.0-openjdk packages.
>> I can confirm that. I have both installed. You can configure the default
>> using the 'alternatives' system.
> is it just me, or does anyone else think that 'alternatives' system is
> completely bogus?
I've always seen it as designed mostly for system services for which 
there are several common implementations - like the SMTP server or the 
printing system. Where I think it makes sense.

It may also be useful to be able to set up a system-wide default for 
user applications "with alternatives", but I suppose a user override 
ought to be possible in that case.

>
> what if I have one user that wants JDK6 and another that needs JDK7 ?
I guess the "preferred applications" system in the desktop is in a way 
meant for such cases, but this of course comes across as incomplete, too.

- Toralf

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