(maven) branch maven-3.9.x updated: Bug: bad cache isolation between two sessions (#11082)

[cs...@apache.org]

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cstamas pushed a commit to branch maven-3.9.x
in repository https://gitbox.apache.org/repos/asf/maven.git


The following commit(s) were added to refs/heads/maven-3.9.x by this push:
     new 59accd6125 Bug: bad cache isolation between two sessions (#11082)
59accd6125 is described below

commit 59accd6125bf8e586577abd6ced3540a0b5ff4d0
Author: Tamas Cservenak <ta...@cservenak.net>
AuthorDate: Mon Sep 1 18:04:03 2025 +0200

    Bug: bad cache isolation between two sessions (#11082)
    
    The "early" session used to load extension will populate
    cache in MavenExecutionRequest and same cache is later
    reused in "normal" session as well.
    
    This is wrong, as if project uses same parent POM as
    any of loaded extnsions, data loss in form of lost
    input locations occurs.
    
    Fixes #11081
---
 maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java b/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
index c7808b2455..742cd66d37 100644
--- a/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
+++ b/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
@@ -111,6 +111,7 @@
 import org.codehaus.plexus.logging.LoggerManager;
 import org.codehaus.plexus.util.StringUtils;
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
+import org.eclipse.aether.DefaultRepositoryCache;
 import org.eclipse.aether.transfer.TransferListener;
 import org.slf4j.ILoggerFactory;
 import org.slf4j.Logger;
@@ -911,6 +912,7 @@ private void encryption(CliRequest cliRequest) throws Exception {
 
     private int execute(CliRequest cliRequest) throws MavenExecutionRequestPopulationException {
         MavenExecutionRequest request = executionRequestPopulator.populateDefaults(cliRequest.request);
+        request.setRepositoryCache(new DefaultRepositoryCache()); // reset caches
 
         eventSpyDispatcher.onEvent(request);