Stefan Oehme created MNG-6619:
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Summary: Core extensions should not be in plexus.core classloader
Key: MNG-6619
URL: https://issues.apache.org/jira/browse/MNG-6619
Project: Maven
Issue Type: Bug
Components: core
Reporter: Stefan Oehme
The core extensions classloader is set up in
[MavenCli|https://github.com/apache/maven/blob/b7249aff22b8993ddecfed26003c2e1bc04e708c/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java#L788].
However, [this
line|https://github.com/apache/maven/blob/0be26449fb96774be126a6ad245d1a98dc71907c/apache-maven/src/bin/m2.conf#L7]
also loads them into the plexus.core classloader, which is really just
supposed to contain the Maven core jars.
This can lead to problems when event spies are added to `lib/ext`. They are
instantiated and get events when resolving other extensions during the
`loadCoreExtensions` method, even though they have not yet been initialized.
I assume that the line in m2.conf is just outdated and superseded by
`loadCoreExtensions` and should thus be removed to avoid non-initialized event
spies being called while loading extensions.
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