Update PluginInterceptor.java

src/main/java/com/minster586/devmode/PluginInterceptor.java

@@ -1 +1,34 @@
+package com.minster586.devmode;
 
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.Listener;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.RegisteredListener;
+
+import java.util.Optional;
+
+public class PluginInterceptor {
+
+    public static Optional<String> getCancellingPlugin(Event event) {
+        if (!event.isCancelled()) return Optional.empty();
+
+        HandlerList handlerList = event.getHandlers();
+        for (RegisteredListener listener : handlerList.getRegisteredListeners()) {
+            Plugin plugin = listener.getPlugin();
+
+            try {
+                listener.callEvent(event); // Simulate who handles it
+            } catch (Exception ignored) {
+                // Ignore exceptions thrown during simulated call
+            }
+
+            // If event remains cancelled, this plugin may be responsible
+            if (event.isCancelled()) {
+                return Optional.of(plugin.getName());
+            }
+        }
+
+        return Optional.empty();
+    }
+}