diff --git a/bukkit/paper-loader/src/main/java/net/momirealms/craftengine/bukkit/plugin/PaperCraftEngineBootstrap.java b/bukkit/paper-loader/src/main/java/net/momirealms/craftengine/bukkit/plugin/PaperCraftEngineBootstrap.java
index 553b4ce2b..05364cd61 100644
--- a/bukkit/paper-loader/src/main/java/net/momirealms/craftengine/bukkit/plugin/PaperCraftEngineBootstrap.java
+++ b/bukkit/paper-loader/src/main/java/net/momirealms/craftengine/bukkit/plugin/PaperCraftEngineBootstrap.java
@@ -39,12 +39,21 @@ public class PaperCraftEngineBootstrap implements PluginBootstrap {
         } catch (ReflectiveOperationException e) {
             throw new RuntimeException("Failed to getLogger", e);
         }
-        this.plugin = new BukkitCraftEngine(
-                logger,
-                context.getDataDirectory(),
-                new BukkitClassPathAppender(),
-                new PaperPluginClassPathAppender(this.getClass().getClassLoader())
-        );
+        try {
+            this.plugin = new BukkitCraftEngine(
+                    logger,
+                    context.getDataDirectory(),
+                    new BukkitClassPathAppender(),
+                    new PaperPluginClassPathAppender(this.getClass().getClassLoader())
+            );
+        } catch (UnsupportedOperationException e) {
+            this.plugin = new BukkitCraftEngine(
+                    logger,
+                    context.getDataDirectory(),
+                    new PaperPluginClassPathAppender(this.getClass().getClassLoader()),
+                    new PaperPluginClassPathAppender(this.getClass().getClassLoader())
+            );
+        }
         this.plugin.applyDependencies();
         this.plugin.setUpConfig();
         if (isDatapackDiscoveryAvailable()) {
diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/classpath/BukkitClassPathAppender.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/classpath/BukkitClassPathAppender.java
index d70d4b615..804947546 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/classpath/BukkitClassPathAppender.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/classpath/BukkitClassPathAppender.java
@@ -21,7 +21,7 @@ public class BukkitClassPathAppender implements ClassPathAppender {
             if (bukkitClassLoader.getClass().getName().equals("space.vectrix.ignite.launch.ember.EmberClassLoader") && bukkitClassLoader.getParent() instanceof URLClassLoader urlClassLoader) {
                 this.libraryClassLoaderAccess = URLClassLoaderAccess.create(urlClassLoader);
             } else {
-                this.libraryClassLoaderAccess = null;
+                throw new UnsupportedOperationException("Unsupported classloader " + bukkitClassLoader.getClass());
             }
         }
     }