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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Tue, 18 May 2021 10:38:10 -0700
Subject: [PATCH] List all missing hard depends not just first


diff --git a/src/main/java/org/bukkit/plugin/SimplePluginManager.java b/src/main/java/org/bukkit/plugin/SimplePluginManager.java
index 0d9d729a18b5388b06ab0a3749e55f91f838be88..c57a59d337a41c083e88e36637d839db027b9289 100644
--- a/src/main/java/org/bukkit/plugin/SimplePluginManager.java
+++ b/src/main/java/org/bukkit/plugin/SimplePluginManager.java
@@ -262,6 +262,7 @@ public final class SimplePluginManager implements PluginManager {
 
                 if (dependencies.containsKey(plugin)) {
                     Iterator<String> dependencyIterator = dependencies.get(plugin).iterator();
+                    final Set<String> missingHardDependencies = new HashSet<>(dependencies.get(plugin).size()); // Paper - list all missing hard depends
 
                     while (dependencyIterator.hasNext()) {
                         String dependency = dependencyIterator.next();
@@ -272,6 +273,12 @@ public final class SimplePluginManager implements PluginManager {
 
                         // We have a dependency not found
                         } else if (!plugins.containsKey(dependency) && !pluginsProvided.containsKey(dependency)) {
+                            // Paper start
+                            missingHardDependencies.add(dependency);
+                        }
+                    }
+                    if (!missingHardDependencies.isEmpty()) {
+                            // Paper end
                             missingDependency = false;
                             pluginIterator.remove();
                             softDependencies.remove(plugin);
@@ -280,9 +287,7 @@ public final class SimplePluginManager implements PluginManager {
                             server.getLogger().log(
                                 Level.SEVERE,
                                 "Could not load '" + entry.getValue().getPath() + "' in folder '" + entry.getValue().getParentFile().getPath() + "'", // Paper
-                                new UnknownDependencyException("Unknown dependency " + dependency + ". Please download and install " + dependency + " to run this plugin."));
-                            break;
-                        }
+                                new UnknownDependencyException(missingHardDependencies, plugin)); // Paper
                     }
 
                     if (dependencies.containsKey(plugin) && dependencies.get(plugin).isEmpty()) {
diff --git a/src/main/java/org/bukkit/plugin/UnknownDependencyException.java b/src/main/java/org/bukkit/plugin/UnknownDependencyException.java
index a80251eff75430863b37db1c131e22593f3fcd5e..7b2e607a21f1173d98ee84581881411176380625 100644
--- a/src/main/java/org/bukkit/plugin/UnknownDependencyException.java
+++ b/src/main/java/org/bukkit/plugin/UnknownDependencyException.java
@@ -26,6 +26,19 @@ public class UnknownDependencyException extends RuntimeException {
         super(message);
     }
 
+    // Paper start
+    /**
+     * Create a new {@link UnknownDependencyException} with a message informing
+     * about which dependencies are missing for what plugin.
+     *
+     * @param missingDependencies missing dependencies
+     * @param pluginName plugin which is missing said dependencies
+     */
+    public UnknownDependencyException(final @org.jetbrains.annotations.NotNull java.util.Collection<String> missingDependencies, final @org.jetbrains.annotations.NotNull String pluginName) {
+        this("Unknown/missing dependency plugins: [" + String.join(", ", missingDependencies) + "]. Please download and install these plugins to run '" + pluginName + "'.");
+    }
+    // Paper end
+
     /**
      * Constructs a new UnknownDependencyException based on the given
      * Exception
diff --git a/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java b/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java
index d2712f45dbcf26fabe8463d99f378bf422c66970..c8b11793c6a3baabc1c9566e0463ab1d6e293827 100644
--- a/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java
+++ b/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java
@@ -132,13 +132,19 @@ public final class JavaPluginLoader implements PluginLoader {
             ));
         }
 
+        Set<String> missingHardDependencies = new HashSet<>(description.getDepend().size()); // Paper - list all missing hard depends
         for (final String pluginName : description.getDepend()) {
             Plugin current = server.getPluginManager().getPlugin(pluginName);
 
             if (current == null) {
-                throw new UnknownDependencyException("Unknown dependency " + pluginName + ". Please download and install " + pluginName + " to run this plugin.");
+                missingHardDependencies.add(pluginName); // Paper - list all missing hard depends
             }
         }
+        // Paper start - list all missing hard depends
+        if (!missingHardDependencies.isEmpty()) {
+            throw new UnknownDependencyException(missingHardDependencies, description.getFullName());
+        }
+        // Paper end
 
         server.getUnsafe().checkSupported(description);