[jira] [Created] (MNG-6773) Slow key creation in DefaultExtensionRealmCache under lock

["Alexander Ashitkin (Jira)" <ji...@apache.org>]

Alexander Ashitkin created MNG-6773:
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             Summary: Slow key creation in DefaultExtensionRealmCache under lock
                 Key: MNG-6773
                 URL: https://issues.apache.org/jira/browse/MNG-6773
             Project: Maven
          Issue Type: Improvement
          Components: Artifacts and Repositories, Dependencies
    Affects Versions: 3.6.2
            Reporter: Alexander Ashitkin


synchronized method DefaultProjectBuildingHelper#createProjectRealm invokes invoke io under lock:
{code:java}
public CacheKey( List<Artifact> extensionArtifacts )
    return new CacheKey( extensionArtifacts );
        public Key createKey( List<Artifact> extensionArtifacts )
            final ExtensionRealmCache.Key extensionKey = extensionRealmCache.createKey( artifacts );
                final ExtensionRealmCache.Key extensionKey = extensionRealmCache.createKey( artifacts );
                    extensionRecord = extensionRealmCache.get( extensionKey ); {code}
 That prevents graph build scaling. Having this lock softened allows to build graph faster up to 3..6 times 



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