In Sun, 8 Jul 2001, Edward Avis cum veritate scripsit :
[...]
> >>for i in /usr/share/java/*; do
> >> export CLASSPATH=$CLASSPATH:$i
> >>done
>
> >But... maybe there will be (with a /huge/ growing number of jars etc.)
> >some broken dependencies or conflicts due to the wrong sequence of jars in
> >CLASSPATH.
>
> Mostly this will not happen due to Java's package rules. A library from
> one vendor will have classes called
>
> com.snakeoil.palisade.Whatever
>
> and another vendor will use
>
> com.gerbil-gratings.simphoni.Whatever
>
> so they can't clash. This even happens for different libraries
> implementing the same spec, such as XML DOM. You set a string in your
> source code to decide whose implementation to use.
Actually they WILL clash! But maybe only for work-in-progress code. But as
a developer I have exactly *these* pbs... ;-(
But that's another story and it surely won't happen to the guy who just
substitutes windoze with Linux Mandrake on his home peecee...
[...]
> old version, as in 'bash1'.) I expect that this also happens when Java
> libraries get incompatible new versions, eg:
>
> com.snakeoil.palisade4_2_1.Whatever
> com.snakeoil.palisade5_3_0.Whatever
Ahrrrg!
> Really you have to say that it's up to the library author. However if
> users do want finer control over what .jar files get searched first they
> can always edit their CLASSPATH themselves. I think that most likely
> they would just add the necessary .jar files to the front.
And the guy with his shiny new Linux?
> >And what about a *big* CLASSPATH if you have installed dozens of java
> >packages?
>
> Not a problem - if you've installed dozens you presumably want to use
I know but that's not... er... NICE!
:-)
> them all. Considering the general speed of Java, I don't think the
> small extra startup time would be significant :-)
The guy must buy an GHz-Athlon. ;-)
[...]
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