J2SE est mort, vive Java SE!

Sean Mullan sean.mullan at oracle.com
Mon Dec 2 21:28:50 UTC 2013

On 11/29/2013 06:47 PM, Omair Majid wrote:
> * Sean Mullan <sean.mullan at oracle.com> [2013-11-27 12:16]:
>> On 11/27/2013 10:46 AM, Wang Weijun wrote:
>>>> What security libs have j2 in their names?
>>> libj2gss.so etc.
>> Any idea what the compatibility risk of removing the "2" would be?
>> This seems less prominent because it doesn't say "j2se", "j2re" or
>> "j2sdk" but I think it would be fine to rename these if the risk is
>> low.
> Out of curiosity, what would be the replacement prefix for this (and
> other native libraries)? Just 'j' instead of 'j2'? A name like libgss.so
> is probably not a good idea, since then using the gss implementation
> library (or another native library) which could have the prefix-less
> name becomes problematic.

'j' sounds reasonable to me. However, I'm not really sure if the 'j2' 
here is from 'j2se', 'j2re', or 'j2sdk', I would have to ask some 
developers who did the original implementation. It could have been 
simply to help avoid naming clashes with other software using these 
names. A search for libjpkcs11.so brings up a few results. If that's the 
case, I would prefer to leave the names as is.


> As a concrete case, an OpenJDK patch I am maintaining [1] tries to use
> the system libjpeg instead of the one bundled with OpenJDK. The bundled
> copy gets built with the code from upstream libjpeg as well as JNI
> bits that are specific to OpenJDK. So I have to split it out into a
> OpenJDK-specific library that links to the real libjpeg. I went with a
> 'java' prefix for the OpenJDK-specific JNI library, but I would like to
> know if there is a consistent standard I should try and use. I am going
> to try and push this patch upstream, if possible.
> Thanks,
> Omair
> [1] http://pkgs.fedoraproject.org/cgit/java-1.8.0-openjdk.git/tree/system-libjpeg.patch#n191

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