diff --git a/maven-resolver-spi/pom.xml b/maven-resolver-spi/pom.xml
index f987a74f3a..487bca3a8d 100644
--- a/maven-resolver-spi/pom.xml
+++ b/maven-resolver-spi/pom.xml
@@ -39,6 +39,10 @@
   </properties>
 
   <dependencies>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.apache.maven.resolver</groupId>
       <artifactId>maven-resolver-api</artifactId>
@@ -52,6 +56,11 @@
       <artifactId>junit-jupiter-api</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/http/RFC9457/RFC9457Reporter.java b/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/http/RFC9457/RFC9457Reporter.java
index 7fb51a945d..82bbc2c4a9 100644
--- a/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/http/RFC9457/RFC9457Reporter.java
+++ b/maven-resolver-spi/src/main/java/org/eclipse/aether/spi/connector/transport/http/RFC9457/RFC9457Reporter.java
@@ -19,6 +19,10 @@
 package org.eclipse.aether.spi.connector.transport.http.RFC9457;
 
 import java.io.IOException;
+import java.io.UncheckedIOException;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * A reporter for RFC 9457 messages.
@@ -35,6 +39,7 @@
  * @see <a href=https://www.rfc-editor.org/rfc/rfc9457#section-3-7>RFC 9457</a>
  */
 public abstract class RFC9457Reporter<T, E extends Exception, R> {
+    private static final Logger LOGGER = LoggerFactory.getLogger(RFC9457Reporter.class);
     public static final String CONTENT_TYPE_PROBLEM_DETAILS_JSON = "application/problem+json";
     public static final String CONTENT_TYPE_PROBLEM_DETAILS_JSON_AND_ANY = "application/problem+json,*/*";
 
@@ -92,6 +97,15 @@ public void generateException(T response, BiConsumerChecked<Integer, String, E>
                 throw new HttpRFC9457Exception(statusCode, reasonPhrase, rfc9457Payload);
             }
             throw new HttpRFC9457Exception(statusCode, reasonPhrase, RFC9457Payload.INSTANCE);
+        } else {
+            try {
+                LOGGER.debug(
+                        "Received a response (not RFC 9457 compliant) with status code {}: {}",
+                        statusCode,
+                        getBody(response));
+            } catch (IOException e) {
+                throw new UncheckedIOException("Failed to read response body", e);
+            }
         }
         baseException.accept(statusCode, reasonPhrase);
     }
diff --git a/maven-resolver-transport-apache/src/main/java/org/eclipse/aether/transport/apache/ApacheRFC9457Reporter.java b/maven-resolver-transport-apache/src/main/java/org/eclipse/aether/transport/apache/ApacheRFC9457Reporter.java
index c9ff111683..41f43701bc 100644
--- a/maven-resolver-transport-apache/src/main/java/org/eclipse/aether/transport/apache/ApacheRFC9457Reporter.java
+++ b/maven-resolver-transport-apache/src/main/java/org/eclipse/aether/transport/apache/ApacheRFC9457Reporter.java
@@ -67,6 +67,9 @@ protected String getReasonPhrase(final CloseableHttpResponse response) {
 
     @Override
     protected String getBody(final CloseableHttpResponse response) throws IOException {
+        if (response.getEntity() == null) {
+            return "";
+        }
         return EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
     }
 }