[MNG-7758] Report dependency problems for all repository

maven-core/src/main/java/org/apache/maven/plugin/PluginResolutionException.java

@@ -18,6 +18,9 @@
  */
 package org.apache.maven.plugin;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 import org.apache.maven.model.Plugin;
 
 /**
@@ -36,6 +39,18 @@ public PluginResolutionException(Plugin plugin, Throwable cause) {
         this.plugin = plugin;
     }
 
+    public PluginResolutionException(Plugin plugin, List<Exception> exceptions, Throwable cause) {
+        super(
+                "Plugin " + plugin.getId() + " or one of its dependencies could not be resolved:"
+                        + System.lineSeparator() + "\t"
+                        + exceptions.stream()
+                                .map(Throwable::getMessage)
+                                .collect(Collectors.joining(System.lineSeparator() + "\t"))
+                        + System.lineSeparator(),
+                cause);
+        this.plugin = plugin;
+    }
+
     public Plugin getPlugin() {
         return plugin;
     }

maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultPluginDependenciesResolver.java

@@ -129,15 +129,17 @@ public Artifact resolve(Plugin plugin, List<RemoteRepository> repositories, Repo
                 pluginArtifact = pluginArtifact.setProperties(props);
             }
         } catch (ArtifactDescriptorException e) {
-            throw new PluginResolutionException(plugin, e);
+            throw new PluginResolutionException(
+                    plugin, e.getResult().getExceptions(), logger.isDebugEnabled() ? e : null);
         }
 
         try {
             ArtifactRequest request = new ArtifactRequest(pluginArtifact, repositories, REPOSITORY_CONTEXT);
             request.setTrace(trace);
             pluginArtifact = repoSystem.resolveArtifact(session, request).getArtifact();
         } catch (ArtifactResolutionException e) {
-            throw new PluginResolutionException(plugin, e);
+            throw new PluginResolutionException(
+                    plugin, e.getResult().getExceptions(), logger.isDebugEnabled() ? e : null);
         }
 
         return pluginArtifact;
@@ -218,9 +220,11 @@ private DependencyNode resolveInternal(
             depRequest.setRoot(node);
             repoSystem.resolveDependencies(session, depRequest);
         } catch (DependencyCollectionException e) {
-            throw new PluginResolutionException(plugin, e);
+            throw new PluginResolutionException(
+                    plugin, e.getResult().getExceptions(), logger.isDebugEnabled() ? e : null);
         } catch (DependencyResolutionException e) {
-            throw new PluginResolutionException(plugin, e.getCause());
+            throw new PluginResolutionException(
+                    plugin, e.getResult().getCollectExceptions(), logger.isDebugEnabled() ? e : null);
         }
 
         return node;

maven-core/src/main/java/org/apache/maven/project/DefaultProjectDependenciesResolver.java

@@ -155,7 +155,9 @@ public DependencyResolutionResult resolve(DependencyResolutionRequest request)
             result.setCollectionErrors(e.getResult().getExceptions());
 
             throw new DependencyResolutionException(
-                    result, "Could not resolve dependencies for project " + project.getId() + ": " + e.getMessage(), e);
+                    result,
+                    "Could not collect dependencies for project " + project.getId(),
+                    logger.isDebugEnabled() ? e : null);
         }
 
         depRequest.setRoot(node);
@@ -184,7 +186,9 @@ public DependencyResolutionResult resolve(DependencyResolutionRequest request)
             process(result, e.getResult().getArtifactResults());
 
             throw new DependencyResolutionException(
-                    result, "Could not resolve dependencies for project " + project.getId() + ": " + e.getMessage(), e);
+                    result,
+                    "Could not resolve dependencies for project " + project.getId(),
+                    logger.isDebugEnabled() ? e : null);
         }
 
         return result;

maven-core/src/main/java/org/apache/maven/project/DependencyResolutionException.java

@@ -18,19 +18,53 @@
  */
 package org.apache.maven.project;
 
+import java.util.List;
+
+import org.eclipse.aether.graph.Dependency;
+
 /**
  * @author Benjamin Bentmann
  */
 public class DependencyResolutionException extends Exception {
 
     private final transient DependencyResolutionResult result;
+    private final transient String detailMessage;
 
     public DependencyResolutionException(DependencyResolutionResult result, String message, Throwable cause) {
         super(message, cause);
         this.result = result;
+        this.detailMessage = prepareDetailMessage(message, result);
+    }
+
+    private static String prepareDetailMessage(String message, DependencyResolutionResult result) {
+        StringBuilder msg = new StringBuilder(message);
+        msg.append(System.lineSeparator());
+        for (Dependency dependency : result.getUnresolvedDependencies()) {
+            msg.append("dependency: ").append(dependency).append(System.lineSeparator());
+            List<Exception> exceptions = result.getResolutionErrors(dependency);
+            for (Exception e : exceptions) {
+                msg.append("\t").append(e.getMessage()).append(System.lineSeparator());
+            }
+        }
+
+        for (Exception exception : result.getCollectionErrors()) {
+            msg.append(exception.getMessage()).append(System.lineSeparator());
+            if (exception.getCause() != null) {
+                msg.append("\tCaused by: ")
+                        .append(exception.getCause().getMessage())
+                        .append(System.lineSeparator());
+            }
+        }
+
+        return msg.toString();
     }
 
     public DependencyResolutionResult getResult() {
         return result;
     }
+
+    @Override
+    public String getMessage() {
+        return detailMessage;
+    }
 }

maven-embedder/src/main/java/org/apache/maven/cli/internal/BootstrapCoreExtensionManager.java

@@ -178,9 +178,7 @@ private List<Artifact> resolveExtension(
             List<Artifact> artifacts = nlg.getArtifacts(false);
 
             return artifacts;
-        } catch (PluginResolutionException e) {
-            throw new ExtensionResolutionException(extension, e.getCause());
-        } catch (InterpolationException e) {
+        } catch (PluginResolutionException | InterpolationException e) {
             throw new ExtensionResolutionException(extension, e);
         }
     }