One ClassLoader per Jar Model
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Key: GERONIMO-4590
URL: https://issues.apache.org/jira/browse/GERONIMO-4590
Project: Geronimo
Issue Type: Improvement
Security Level: public (Regular issues)
Components: kernel
Affects Versions: 2.1.3
Reporter: Gianny Damour
Assignee: Gianny Damour
As discussed on @dev, to reduce the number of ClassCastExceptions caused by
collaborating configurations importing the same dependencies, the classloading
design can be improved to use a shared and global poll of classloaders.
Each classloader in this global poll is mapped to only one JAR. They are put in
a hierarchy according to their maven dependency declarations. As maven
dependencies may not be systematically correct, additional dependency
declarations can also be provided by dropping a XML file
"artifactId-version-additional.xml" beside the JAR or POM file
"artifactId-version.jar (.pom)" whose dependencies are to be supplemented.
This patch is a preview of the functionality to trigger more discussions.
22 out of the 74 configurations of the jetty-jee5 assembly can start fine with
this patch. The failure observed for the failing configuration appears to be
another maven dependency declaration issue.
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