[java-mvn-enforcer] 03/03: JMVN-90 Troubleshoot Maven artifact resolution errors

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commit 787abdd9d6aaee324512e42dee38cb0983908726
Author: Rod Widdowson <rdw at steadingsoftware.com>
AuthorDate: Thu Oct 8 14:15:03 2026 +0100

    JMVN-90 Troubleshoot Maven artifact resolution errors
    
    https://shibboleth.atlassian.net/browse/JMVN-90
    
    Add extended logging and limited retry for artifact resolution
---
 .../shibboleth/mvn/enforcer/impl/JarEnforcer.java  | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/main/java/net/shibboleth/mvn/enforcer/impl/JarEnforcer.java b/src/main/java/net/shibboleth/mvn/enforcer/impl/JarEnforcer.java
index 47ac73d..6847d02 100644
--- a/src/main/java/net/shibboleth/mvn/enforcer/impl/JarEnforcer.java
+++ b/src/main/java/net/shibboleth/mvn/enforcer/impl/JarEnforcer.java
@@ -498,14 +498,20 @@ public class JarEnforcer extends AbstractEnforcerRule implements MavenLoader{
 
         final Artifact artifact = new DefaultArtifact(groupId, artifactId, classifier, type, version);
         final ArtifactRequest req = new ArtifactRequest(artifact, project.getRemoteProjectRepositories(), null);
-        log.debug("Resolving ", artifact);
-        try {
-            final ArtifactResult res = repositorySystem.resolveArtifact(session.getRepositorySession(),  req);
-            final File file = res.getArtifact().getFile();
-            log.debug("Resolved to ", file.getAbsolutePath());
-            return file;
-        } catch (final ArtifactResolutionException e) {
-            log.error("Resolution failed", e);
+        int retryCount = 0;
+        log.debug("Resolving {}", artifact);
+        while(true) {
+	        try {
+	            final ArtifactResult res = repositorySystem.resolveArtifact(session.getRepositorySession(),  req);
+	            final File file = res.getArtifact().getFile();
+	            log.debug("Resolved to {}", file.getAbsolutePath());
+	            return file;
+	        } catch (final ArtifactResolutionException e) {
+	            log.error("Resolution of {} failed {} {} \n {}", artifact, e.getMessage(), e.getCause(), e.getStackTrace());
+	            if (retryCount++ > 1) {
+                    break;
+	            }
+	        }
         }
         return null;
     }

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