From 9ced72c8578825cdc8ea5c49a59f921a7157b772 Mon Sep 17 00:00:00 2001
From: Guillaume Nodet <gnodet@gmail.com>
Date: Wed, 10 May 2023 20:42:38 +0200
Subject: [PATCH] Do not clone the session on maven >= 3.9.x, fixes #24

---
 .../maven/builder/smart/SmartBuilderImpl.java      | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/main/java/io/takari/maven/builder/smart/SmartBuilderImpl.java b/src/main/java/io/takari/maven/builder/smart/SmartBuilderImpl.java
index 3a5e0dd..e7e7e91 100644
--- a/src/main/java/io/takari/maven/builder/smart/SmartBuilderImpl.java
+++ b/src/main/java/io/takari/maven/builder/smart/SmartBuilderImpl.java
@@ -22,6 +22,7 @@
  * the License.
  */
 
+import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 import org.apache.maven.execution.BuildFailure;
 import org.apache.maven.execution.BuildSuccess;
 import org.apache.maven.execution.BuildSummary;
@@ -200,7 +201,7 @@ private void submitAll(Set<MavenProject> readyProjects) {
     logger.debug("STARTED build of project {}:{}", project.getGroupId(), project.getArtifactId());
 
     try {
-      MavenSession copiedSession = rootSession.clone();
+      MavenSession copiedSession = needsSessionClone() ? rootSession.clone() : rootSession;
       lifecycleModuleBuilder.buildProject(copiedSession, rootSession, reactorContext, project,
           taskSegment);
     } catch (RuntimeException ex) {
@@ -210,4 +211,15 @@ private void submitAll(Set<MavenProject> readyProjects) {
     }
   }
 
+  private static boolean needsSessionClone() {
+    String version = System.getProperty("maven.version");
+    if (version != null) {
+      DefaultArtifactVersion v = new DefaultArtifactVersion(version);
+      if (v.getMajorVersion() > 3 || (v.getMajorVersion() == 3 && v.getMinorVersion() >= 9)) {
+        return false;
+      }
+    }
+    return true;
+  }
+
 }