From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Sat, 1 Oct 2022 09:44:26 +0200
Subject: [PATCH] Add system property to print stacktrace on bad plugin class
 access


diff --git a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
index f7cfe6c0d9d52ed72d0d45baaaf856c15769c668..cb3c25ef46b279ffdde87f47f729eb8aa7549c1c 100644
--- a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
+++ b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
@@ -162,6 +162,11 @@ public final class PluginClassLoader extends URLClassLoader { // Spigot
                             // In case the bad access occurs on construction
                             loader.server.getLogger().log(Level.WARNING, "[{0}] Loaded class {1} from {2} which is not a depend or softdepend of this plugin.", new Object[]{description.getName(), name, provider.getFullName()});
                         }
+                        // Paper start
+                        if (Boolean.getBoolean("Paper.printStacktraceOnBadPluginClassAccess")) {
+                            (plugin != null ? plugin.getLogger() : loader.server.getLogger()).log(Level.WARNING, "Stacktrace", new Exception());
+                        }
+                        // Paper end
                     }
                 }
 
