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https://issues.apache.org/jira/browse/MNG-7662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17784143#comment-17784143
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ASF GitHub Bot commented on MNG-7662:
-------------------------------------

rmannibucau commented on code in PR #950:
URL: https://github.com/apache/maven/pull/950#discussion_r1386957429


##########
maven-core/pom.xml:
##########
@@ -144,6 +144,12 @@ under the License.
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
     </dependency>
+    <dependency>

Review Comment:
   Well, this is not really the same, here you build an user facing feature 
(I'm thinking to extensions more than mojo) so it has to support this 
transparent java upgrade.
   For "us" we don't care since our bytecode will always be consistent as you 
explained.
   This is why I think we should generate the proxies at build time in out 
tooling stack more than at runtime - and I don't think doing it only for user 
code would be good.
   
   this is my reasoning





> Allow Graphbuilder to use session scoped components
> ---------------------------------------------------
>
>                 Key: MNG-7662
>                 URL: https://issues.apache.org/jira/browse/MNG-7662
>             Project: Maven
>          Issue Type: Bug
>            Reporter: Christoph Läubrich
>            Priority: Major
>
> Currently DefaultMaven gets the Graphbuilder injected as a strict requirement 
> at a very early stage. This leads to the problem, that a GraphBuilder 
> implementation can not use any SessionScoped Components (because the session 
> scope is not setup yet). 
> The error then is
> {code:java}
> 1) Error in custom provider, com.google.inject.OutOfScopeException: Cannot 
> access Key[type=org.apache.maven.execution.MavenSession, annotation=[none]] 
> outside of a scoping block
>   at 
> org.apache.maven.session.scope.internal.SessionScopeModule.configure(SessionScopeModule.java:64)
>  (via modules: org.eclipse.sisu.wire.WireModule -> 
> org.apache.maven.session.scope.internal.SessionScopeModule)
>   while locating org.apache.maven.execution.MavenSession
>     for the 1st parameter of 
> org.eclipse.tycho.helper.PluginRealmHelper.<init>(Unknown Source)
>   at ClassRealm[coreExtension>org.eclipse.tycho:tycho-build:${tycho-version}, 
> parent: ClassRealm[plexus.core, parent: null]] (via modules: 
> org.eclipse.sisu.wire.WireModule -> 
> org.eclipse.sisu.plexus.PlexusBindingModule)
>   while locating org.eclipse.tycho.helper.PluginRealmHelper
>   at ClassRealm[coreExtension>org.eclipse.tycho:tycho-build:${tycho-version}, 
> parent: ClassRealm[plexus.core, parent: null]] (via modules: 
> org.eclipse.sisu.wire.WireModule -> 
> org.eclipse.sisu.plexus.PlexusBindingModule)
>   while locating org.eclipse.tycho.p2maven.InstallableUnitGenerator
>   at ClassRealm[coreExtension>org.eclipse.tycho:tycho-build:${tycho-version}, 
> parent: ClassRealm[plexus.core, parent: null]] (via modules: 
> org.eclipse.sisu.wire.WireModule -> 
> org.eclipse.sisu.plexus.PlexusBindingModule)
>   while locating org.eclipse.tycho.p2maven.MavenProjectDependencyProcessor
>   while locating org.eclipse.tycho.build.TychoGraphBuilder
> {code}



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