Re: The evils of /usr/share/java/repository
On Sun, Sep 16, 2001 at 04:21:09PM -0700, Per Bothner wrote:
> Jeff Turner wrote:
>
> >I can write a Hello World program just fine with a completely blank
> >classpath [1]. In fact, I can write any program that uses java.* and
> >javax.* with nothing in the classpath except the package root.
> >
> $ javac foo.java
> foo.java:1: cannot resolve symbol
> symbol : class Servlet
> location: package servlet
> import javax.servlet.Servlet;
> ^
> 1 error
>
Well this is not a simple HelloWorld program, it is a servlet. And
the classes is in servlet2.2.jar right now.
> On Sun, Sep 16, 2001 at 02:16:58PM -0700, Per Bothner wrote:
>
> >Let's just suppose that some crazy people disagree with you, and don't
> >want miscellaneous libraries in their classpath.
> >
> If people want that, they can use something analoguous to gcc's
> -nostdinc option.
> However, note that -nostdinc is not the default!
>
> >Suppose these people
> >have been burnt by class version conflicts. Suppose these people get
> >upset when moving their program to a different system, and finding they
> >were unwittingly relying on some jar.
> >
> And how is this different from unwittingly relying on some .so?
>
> >You've now taken away the *choice* of those people. If the classpath was
> >left blank, developers are free to include the following in their
> >personal .bash_profile:
> >
> >for i in /usr/share/java/*.jar; do
> > export CLASSPATH=$CLASSPATH:$i
> >done
> >
> Requiring Java developers to modify their ~/.bashrc is not acceptable.
>
> >Now, are you feeling omniscient enough to declare that this will be fine
> >with *all* developers out there? That there will *never* be a situation
> >where an empty classpath is required?
> >
> No. However, we are talking about what the *default* should be.
>
> >I wonder why that is.. I don't remember using a 3rd party package beyond
> >the STL.
> >
> Some people write more complex C or C++ programs than you do. If you've
> ever compiled xemacs from source you might notice it looks for a lot of 3rd
> party packages.
>
>
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Regards,
// Ola
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