diff --git a/deob-ast/src/main/java/dev/openrs2/deob/ast/AstDeobfuscator.java b/deob-ast/src/main/java/dev/openrs2/deob/ast/AstDeobfuscator.java
deleted file mode 100644
index e75e1012..00000000
--- a/deob-ast/src/main/java/dev/openrs2/deob/ast/AstDeobfuscator.java
+++ /dev/null
@@ -1,98 +0,0 @@
-package dev.openrs2.deob.ast;
-
-import java.nio.file.Path;
-import java.nio.file.Paths;
-
-import com.github.javaparser.ParserConfiguration;
-import com.github.javaparser.printer.PrettyPrinter;
-import com.github.javaparser.printer.PrettyPrinterConfiguration;
-import com.github.javaparser.symbolsolver.JavaSymbolSolver;
-import com.github.javaparser.symbolsolver.resolution.typesolvers.CombinedTypeSolver;
-import com.github.javaparser.symbolsolver.resolution.typesolvers.JavaParserTypeSolver;
-import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
-import com.github.javaparser.utils.SourceRoot;
-import com.google.common.collect.ImmutableList;
-import dev.openrs2.deob.ast.transform.AddSubTransformer;
-import dev.openrs2.deob.ast.transform.BinaryExprOrderTransformer;
-import dev.openrs2.deob.ast.transform.BitMaskTransformer;
-import dev.openrs2.deob.ast.transform.ComplementTransformer;
-import dev.openrs2.deob.ast.transform.EncloseTransformer;
-import dev.openrs2.deob.ast.transform.IfElseTransformer;
-import dev.openrs2.deob.ast.transform.NegativeLiteralTransformer;
-import dev.openrs2.deob.ast.transform.NewInstanceTransformer;
-import dev.openrs2.deob.ast.transform.TernaryTransformer;
-import dev.openrs2.deob.ast.transform.Transformer;
-import dev.openrs2.deob.ast.transform.UnencloseTransformer;
-import dev.openrs2.deob.ast.transform.ValueOfTransformer;
-
-public final class AstDeobfuscator {
-	private static final ImmutableList<Transformer> TRANSFORMERS = ImmutableList.of(
-		new UnencloseTransformer(),
-		new NegativeLiteralTransformer(),
-		new ComplementTransformer(),
-		new IfElseTransformer(),
-		new TernaryTransformer(),
-		new BinaryExprOrderTransformer(),
-		new AddSubTransformer(),
-		new BitMaskTransformer(),
-		new ValueOfTransformer(),
-		new NewInstanceTransformer(),
-		new EncloseTransformer()
-	);
-
-	public static void main(String[] args) {
-		var deobfuscator = new AstDeobfuscator(ImmutableList.of(
-			Paths.get("nonfree/client/src/main/java"),
-			Paths.get("nonfree/gl/src/main/java"),
-			Paths.get("nonfree/gl-dri/src/main/java"),
-			Paths.get("nonfree/loader/src/main/java"),
-			Paths.get("nonfree/signlink/src/main/java"),
-			Paths.get("nonfree/unpack/src/main/java"),
-			Paths.get("nonfree/unpacker/src/main/java")
-		));
-		deobfuscator.run();
-	}
-
-	private final ImmutableList<Path> modules;
-
-	public AstDeobfuscator(ImmutableList<Path> modules) {
-		this.modules = modules;
-	}
-
-	public void run() {
-		var solver = new CombinedTypeSolver(new ReflectionTypeSolver(true));
-		for (var module : modules) {
-			solver.add(new JavaParserTypeSolver(module));
-		}
-
-		var config = new ParserConfiguration()
-			.setLanguageLevel(ParserConfiguration.LanguageLevel.JAVA_8)
-			.setSymbolResolver(new JavaSymbolSolver(solver));
-
-		var printerConfig = new PrettyPrinterConfiguration()
-			.setIndentType(PrettyPrinterConfiguration.IndentType.TABS_WITH_SPACE_ALIGN)
-			.setIndentSize(1);
-
-		var printer = new PrettyPrinter(printerConfig);
-
-		for (var module : modules) {
-			var root = new SourceRoot(module, config);
-
-			var results = root.tryToParseParallelized();
-			for (var result : results) {
-				if (!result.isSuccessful()) {
-					throw new IllegalArgumentException(result.toString());
-				}
-			}
-
-			root.getCompilationUnits().forEach(unit -> {
-				TRANSFORMERS.forEach(transformer -> {
-					transformer.transform(unit);
-				});
-			});
-
-			root.setPrinter(printer::print);
-			root.saveAll();
-		}
-	}
-}
diff --git a/deob-ast/src/main/java/dev/openrs2/deob/ast/AstDeobfuscator.kt b/deob-ast/src/main/java/dev/openrs2/deob/ast/AstDeobfuscator.kt
new file mode 100644
index 00000000..7bda7d9b
--- /dev/null
+++ b/deob-ast/src/main/java/dev/openrs2/deob/ast/AstDeobfuscator.kt
@@ -0,0 +1,83 @@
+package dev.openrs2.deob.ast
+
+import com.github.javaparser.ParserConfiguration
+import com.github.javaparser.printer.PrettyPrinter
+import com.github.javaparser.printer.PrettyPrinterConfiguration
+import com.github.javaparser.symbolsolver.JavaSymbolSolver
+import com.github.javaparser.symbolsolver.resolution.typesolvers.CombinedTypeSolver
+import com.github.javaparser.symbolsolver.resolution.typesolvers.JavaParserTypeSolver
+import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver
+import com.github.javaparser.utils.SourceRoot
+import dev.openrs2.deob.ast.transform.*
+import java.nio.file.Path
+import java.nio.file.Paths
+import java.util.function.Function
+
+class AstDeobfuscator(private val modules: List<Path>) {
+    fun run() {
+        val solver = CombinedTypeSolver(ReflectionTypeSolver(true))
+        for (module in modules) {
+            solver.add(JavaParserTypeSolver(module))
+        }
+
+        val config = ParserConfiguration()
+            .setLanguageLevel(ParserConfiguration.LanguageLevel.JAVA_8)
+            .setSymbolResolver(JavaSymbolSolver(solver))
+
+        val printerConfig = PrettyPrinterConfiguration()
+            .setIndentType(PrettyPrinterConfiguration.IndentType.TABS_WITH_SPACE_ALIGN)
+            .setIndentSize(1)
+
+        val printer = PrettyPrinter(printerConfig)
+
+        for (module in modules) {
+            val root = SourceRoot(module, config)
+
+            val results = root.tryToParseParallelized()
+            for (result in results) {
+                require(result.isSuccessful) { result }
+            }
+
+            root.compilationUnits.forEach { unit ->
+                TRANSFORMERS.forEach { transformer ->
+                    transformer.transform(unit)
+                }
+            }
+
+            root.printer = Function(printer::print)
+            root.saveAll()
+        }
+    }
+
+    companion object {
+        private val TRANSFORMERS = listOf(
+            UnencloseTransformer(),
+            NegativeLiteralTransformer(),
+            ComplementTransformer(),
+            IfElseTransformer(),
+            TernaryTransformer(),
+            BinaryExprOrderTransformer(),
+            AddSubTransformer(),
+            BitMaskTransformer(),
+            ValueOfTransformer(),
+            NewInstanceTransformer(),
+            EncloseTransformer()
+        )
+
+        @JvmStatic
+        fun main(args: Array<String>) {
+            val deobfuscator = AstDeobfuscator(
+                listOf(
+                    Paths.get("nonfree/client/src/main/java"),
+                    Paths.get("nonfree/gl/src/main/java"),
+                    Paths.get("nonfree/gl-dri/src/main/java"),
+                    Paths.get("nonfree/loader/src/main/java"),
+                    Paths.get("nonfree/signlink/src/main/java"),
+                    Paths.get("nonfree/unpack/src/main/java"),
+                    Paths.get("nonfree/unpacker/src/main/java")
+                )
+            )
+            deobfuscator.run()
+        }
+    }
+}