diff --git a/deob/src/main/java/dev/openrs2/deob/transform/AccessTransformer.java b/deob/src/main/java/dev/openrs2/deob/transform/AccessTransformer.java
deleted file mode 100644
index e26df09e..00000000
--- a/deob/src/main/java/dev/openrs2/deob/transform/AccessTransformer.java
+++ /dev/null
@@ -1,65 +0,0 @@
-package dev.openrs2.deob.transform;
-
-import dev.openrs2.asm.classpath.ClassPath;
-import dev.openrs2.asm.classpath.Library;
-import dev.openrs2.asm.transform.Transformer;
-import org.objectweb.asm.Opcodes;
-import org.objectweb.asm.tree.ClassNode;
-import org.objectweb.asm.tree.FieldNode;
-import org.objectweb.asm.tree.MethodNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public final class AccessTransformer extends Transformer {
-	private static final Logger logger = LoggerFactory.getLogger(AccessTransformer.class);
-
-	private int redundantFinals, packagePrivate;
-
-	@Override
-	protected void preTransform(ClassPath classPath) {
-		redundantFinals = 0;
-		packagePrivate = 0;
-	}
-
-	@Override
-	protected boolean transformClass(ClassPath classPath, Library library, ClassNode clazz) {
-		if ((clazz.access & (Opcodes.ACC_PUBLIC | Opcodes.ACC_PROTECTED | Opcodes.ACC_PRIVATE)) == 0) {
-			clazz.access |= Opcodes.ACC_PUBLIC;
-			packagePrivate++;
-		}
-		return false;
-	}
-
-	@Override
-	protected boolean transformField(ClassPath classPath, Library library, ClassNode clazz, FieldNode field) {
-		if ((field.access & (Opcodes.ACC_PUBLIC | Opcodes.ACC_PROTECTED | Opcodes.ACC_PRIVATE)) == 0) {
-			field.access |= Opcodes.ACC_PUBLIC;
-			packagePrivate++;
-		}
-		return false;
-	}
-
-	@Override
-	protected boolean preTransformMethod(ClassPath classPath, Library library, ClassNode clazz, MethodNode method) {
-		if ((method.access & (Opcodes.ACC_PUBLIC | Opcodes.ACC_PROTECTED | Opcodes.ACC_PRIVATE)) == 0) {
-			method.access |= Opcodes.ACC_PUBLIC;
-			packagePrivate++;
-		}
-
-		if ((method.access & Opcodes.ACC_FINAL) == 0) {
-			return false;
-		}
-
-		if ((method.access & (Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC)) != 0) {
-			method.access &= ~Opcodes.ACC_FINAL;
-			redundantFinals++;
-		}
-		return false;
-	}
-
-	@Override
-	protected void postTransform(ClassPath classPath) {
-		logger.info("Removed {} redundant final modifiers", redundantFinals);
-		logger.info("Made {} package-private classes, fields and methods public", packagePrivate);
-	}
-}
diff --git a/deob/src/main/java/dev/openrs2/deob/transform/AccessTransformer.kt b/deob/src/main/java/dev/openrs2/deob/transform/AccessTransformer.kt
new file mode 100644
index 00000000..f40f273d
--- /dev/null
+++ b/deob/src/main/java/dev/openrs2/deob/transform/AccessTransformer.kt
@@ -0,0 +1,67 @@
+package dev.openrs2.deob.transform
+
+import com.github.michaelbull.logging.InlineLogger
+import dev.openrs2.asm.classpath.ClassPath
+import dev.openrs2.asm.classpath.Library
+import dev.openrs2.asm.transform.Transformer
+import org.objectweb.asm.Opcodes
+import org.objectweb.asm.tree.ClassNode
+import org.objectweb.asm.tree.FieldNode
+import org.objectweb.asm.tree.MethodNode
+
+class AccessTransformer : Transformer() {
+    private var redundantFinals = 0
+    private var packagePrivate = 0
+
+    override fun preTransform(classPath: ClassPath) {
+        redundantFinals = 0
+        packagePrivate = 0
+    }
+
+    override fun transformClass(classPath: ClassPath, library: Library, clazz: ClassNode): Boolean {
+        if (clazz.access and (Opcodes.ACC_PUBLIC or Opcodes.ACC_PROTECTED or Opcodes.ACC_PRIVATE) == 0) {
+            clazz.access = clazz.access or Opcodes.ACC_PUBLIC
+            packagePrivate++
+        }
+        return false
+    }
+
+    override fun transformField(classPath: ClassPath, library: Library, clazz: ClassNode, field: FieldNode): Boolean {
+        if (field.access and (Opcodes.ACC_PUBLIC or Opcodes.ACC_PROTECTED or Opcodes.ACC_PRIVATE) == 0) {
+            field.access = field.access or Opcodes.ACC_PUBLIC
+            packagePrivate++
+        }
+        return false
+    }
+
+    override fun preTransformMethod(
+        classPath: ClassPath,
+        library: Library,
+        clazz: ClassNode,
+        method: MethodNode
+    ): Boolean {
+        if (method.access and (Opcodes.ACC_PUBLIC or Opcodes.ACC_PROTECTED or Opcodes.ACC_PRIVATE) == 0) {
+            method.access = method.access or Opcodes.ACC_PUBLIC
+            packagePrivate++
+        }
+
+        if (method.access and Opcodes.ACC_FINAL == 0) {
+            return false
+        }
+
+        if (method.access and (Opcodes.ACC_PRIVATE or Opcodes.ACC_STATIC) != 0) {
+            method.access = method.access and Opcodes.ACC_FINAL.inv()
+            redundantFinals++
+        }
+        return false
+    }
+
+    override fun postTransform(classPath: ClassPath) {
+        logger.info { "Removed $redundantFinals redundant final modifiers" }
+        logger.info { "Made $packagePrivate package-private classes, fields and methods public" }
+    }
+
+    companion object {
+        private val logger = InlineLogger()
+    }
+}