----- Original Message -----
From: "Ulrich Mayring" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, September 10, 2001 5:19 PM
Subject: How does Avalon load libraries???
> Hello,
>
> we have severe problems here with classloading, which we cannot
> reproduce at will. Sometimes jars in the general Avalon lib directory
> are not found by a block. Sometimes jars in a block's lib directory are
> found by other blocks (even by blocks in another .sar application),
> sometimes not even by their own block. Sometimes Avalon loads blocks and
> sars in alphabetical order, sometimes not. Something is seriously weird
> here and to put my finger on it I'd like to know how and when Avalon
> loads libraries in a multi-block, multi-sar environment like this:
>
> ~avalon/lib
>
> ~avalon/apps/foo.sar
> ~avalon/apps/foo/blocks/block1/lib
> ~avalon/apps/foo/blocks/block2/lib
>
> ~avalon/apps/bar.sar
> ~avalon/apps/bar/blocks/block3/lib
> ~avalon/apps/bar/blocks/block4/lib
>
> ~avalon/apps/baz.sar
> ~avalon/apps/baz/blocks/block5/lib
>
> Now, suppose block3 and block5 need the same jar - where do I put it?
> What is the general strategy of Avalon loading jars?
put to phoenix/lib jars which commonly used by applications.
put to ${app1}.sar/lib jars which commonly used by blocks in same
application.
do not put jars to bar. bar contain only blocks and classes.
Hi. Each application( sar ) is absolute seperated.
each application has it's own ClassLoader.
therefore block1 in app1 does not access block2 in app2.
>
> Thank you very much for any pointers,
>
> Ulrich
>
> --
> Ulrich Mayring
> DENIC eG, Systementwicklung
>
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