[ nice-Bugs-1177746 ] multi-method NoSuchMethodError (library class loading)

Bugs item #1177746, was opened at 2005-04-06 17:12
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Artem Gr Kozarezov (artemgr)
Assigned to: Nobody/Anonymous (nobody)
Summary: multi-method NoSuchMethodError (library class loading)

Initial Comment:
http://confer09.condor-edv.com/nice@freenode/2005-04-06.html

When there is a Nice library (in a separate library.jar
that can't be modified), and the program defines a
multi-method on a class from that library, then it
depends on ClassLoader whether the modified library
class will be seen or not. If ClassLoader checks
library.jar first, then the original class, without new
multi-method, is loaded, and NoSuchMethodError
exception is thrown at runtime. This problem is even
worse for dynamically-compiled Nice packages, where
application build process can't be modified, class
loading order is predefined and more: the modified
class is already loaded and used by the JVM.
This problem is currently actual for package-visible
multi-methods also...


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