diff --git a/src/main/java/org/hmcore/registration/config/ModuleInfo.java b/src/main/java/org/hmcore/registration/config/ModuleInfo.java
deleted file mode 100644
index 26b94dd..0000000
--- a/src/main/java/org/hmcore/registration/config/ModuleInfo.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package org.hmcore.registration.config;
-
-public class ModuleInfo {
-
-    public final String moduleName;
-    public final ObjectInfoData[] objects;
-
-    public ModuleInfo(String moduleName, ObjectInfoData[] objects) {
-        this.moduleName = moduleName;
-        this.objects = objects;
-    }
-}
diff --git a/src/main/java/org/hmcore/registration/config/ObjectInfoConfig.java b/src/main/java/org/hmcore/registration/config/ObjectInfoConfig.java
deleted file mode 100644
index 8bcd2df..0000000
--- a/src/main/java/org/hmcore/registration/config/ObjectInfoConfig.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package org.hmcore.registration.config;
-
-public class ObjectInfoConfig {
-
-    public final ModuleInfo[] modules;
-
-    public ObjectInfoConfig(ModuleInfo[] modules) {
-        this.modules = modules;
-    }
-}
diff --git a/src/main/kotlin/org/hmcore/registration/config/ModuleInfo.kt b/src/main/kotlin/org/hmcore/registration/config/ModuleInfo.kt
new file mode 100644
index 0000000..ebe41fc
--- /dev/null
+++ b/src/main/kotlin/org/hmcore/registration/config/ModuleInfo.kt
@@ -0,0 +1,6 @@
+package org.hmcore.registration.config
+
+internal class ModuleInfo(
+    @JvmField val moduleName: String,
+    @JvmField val objects: Array<ObjectInfoData>,
+)
\ No newline at end of file
diff --git a/src/main/kotlin/org/hmcore/registration/config/ObjectInfoConfig.kt b/src/main/kotlin/org/hmcore/registration/config/ObjectInfoConfig.kt
new file mode 100644
index 0000000..b236bef
--- /dev/null
+++ b/src/main/kotlin/org/hmcore/registration/config/ObjectInfoConfig.kt
@@ -0,0 +1,5 @@
+package org.hmcore.registration.config
+
+internal class ObjectInfoConfig(
+    @JvmField val modules: Array<ModuleInfo>,
+)
\ No newline at end of file