diff --git a/BukkitUtils/src/main/java/eu/mikroskeem/utils/bukkit/ServerUtils.java b/BukkitUtils/src/main/java/eu/mikroskeem/utils/bukkit/ServerUtils.java
index c10ceee..83de0d6 100644
--- a/BukkitUtils/src/main/java/eu/mikroskeem/utils/bukkit/ServerUtils.java
+++ b/BukkitUtils/src/main/java/eu/mikroskeem/utils/bukkit/ServerUtils.java
@@ -97,9 +97,11 @@ public class ServerUtils {
         Class<?> clClass = classLoader.getClass();
         try {
             Class<?> pluginClassLoader = checkNotNull(Reflect.getClass(
-                    "org.bukkit.plugin.java.PluginClassLoader"));
+                    "org.bukkit.plugin.java.PluginClassLoader"),
+                    "Couldn't find org.bukkit.plugin.java.PluginClassLoader class");
             if(pluginClassLoader.isAssignableFrom(clClass)){
-                Field classesField = checkNotNull(Reflect.getField(clClass, "classes"));
+                Field classesField = checkNotNull(Reflect.getField(clClass, "classes"),
+                        "Failed to get classes field");
                 return (Map<String, Class<?>>) checkNotNull(Reflect.readField(classesField, classLoader));
             } else {
                 throw new RuntimeException(