From b51c5d801c1e329b1e59e7b66142c8fd9c0ba6af Mon Sep 17 00:00:00 2001
From: Slawomir Jaranowski <s.jaranowski@gmail.com>
Date: Sat, 23 Oct 2021 16:21:29 +0200
Subject: [PATCH] [MJAVADOC-694] Avoid empty warn message from
 getResolvePathResult

---
 .../maven/plugins/javadoc/AbstractJavadocMojo.java   | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java b/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java
index b1b5a57ae..6fde43e8e 100644
--- a/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java
+++ b/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java
@@ -5543,12 +5543,16 @@ private ResolvePathResult getResolvePathResult( File artifactFile )
         }
         catch ( IOException | RuntimeException /* e.g java.lang.module.FindException */ e )
         {
-            Throwable cause = e;
-            while ( cause.getCause() != null )
+            if ( getLog().isDebugEnabled() )
             {
-                cause = cause.getCause();
+                Throwable cause = e;
+                while ( cause.getCause() != null )
+                {
+                    cause = cause.getCause();
+                }
+
+                getLog().debug( "resolve path for: " + artifactFile + " cause error: " + cause );
             }
-            getLog().warn( e.getMessage() );
         }
         return resolvePathResult;
     }