diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/asm/NodeUtils.java b/LaunchServer/src/main/java/pro/gravit/launchserver/asm/NodeUtils.java
index 56b9e221..9919cde7 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/asm/NodeUtils.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/asm/NodeUtils.java
@@ -15,6 +15,17 @@
 import static org.objectweb.asm.Opcodes.*;
 
 public final class NodeUtils {
+	public static final boolean JAVA9;
+
+	static {
+		boolean java9 = false;
+		try {
+			Class.forName("java.lang.StackWalker");
+			java9 = true;
+		} catch (final Throwable e) {
+		}
+		JAVA9 = java9;
+	}
     private NodeUtils() {
     }
 
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/binary/ProguardConf.java b/LaunchServer/src/main/java/pro/gravit/launchserver/binary/ProguardConf.java
index 123b8a89..ff9e3277 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/binary/ProguardConf.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/binary/ProguardConf.java
@@ -1,6 +1,7 @@
 package pro.gravit.launchserver.binary;
 
 import pro.gravit.launchserver.LaunchServer;
+import pro.gravit.launchserver.asm.NodeUtils;
 import pro.gravit.utils.helper.IOHelper;
 import pro.gravit.utils.helper.LogHelper;
 import pro.gravit.utils.helper.SecurityHelper;
@@ -13,11 +14,21 @@
 import java.nio.file.Path;
 import java.security.SecureRandom;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 public class ProguardConf {
     private static final String chars = "1aAbBcC2dDeEfF3gGhHiI4jJkKl5mMnNoO6pPqQrR7sStT8uUvV9wWxX0yYzZ";
 
+    public static final String[] JAVA9_OPTS = new String[] {
+    		"-libraryjars '<java.home>/jmods/'"
+    };
+    public static final String[] JAVA8_OPTS = new String[] {
+    		"-libraryjars '<java.home>/lib/rt.jar'",
+    		"-libraryjars '<java.home>/lib/jce.jar'",
+    		"-libraryjars '<java.home>/lib/ext/nashorn.jar'",
+    		"-libraryjars '<java.home>/lib/ext/jfxrt.jar'"
+    };
     private static String generateString(SecureRandom rand, String lowString, String upString, int il) {
         StringBuilder sb = new StringBuilder(Math.max(il, lowString.length()));
         for (int i = 0; i < lowString.length(); ++i) {
@@ -50,9 +61,11 @@ public String[] buildConfig(Path inputJar, Path outputJar) {
         confStrs.add("-obfuscationdictionary \'" + words.toFile().getName() + "\'");
         confStrs.add("-injar \'" + inputJar.toAbsolutePath() + "\'");
         confStrs.add("-outjar \'" + outputJar.toAbsolutePath() + "\'");
+    	Collections.addAll(confStrs, NodeUtils.JAVA9 ? JAVA9_OPTS : JAVA8_OPTS);
         srv.launcherBinary.coreLibs.stream()
                 .map(e -> "-libraryjars \'" + e.toAbsolutePath().toString() + "\'")
                 .forEach(confStrs::add);
+        
         srv.launcherBinary.addonLibs.stream()
                 .map(e -> "-libraryjars \'" + e.toAbsolutePath().toString() + "\'")
                 .forEach(confStrs::add);
diff --git a/LaunchServer/src/main/resources/pro/gravit/launchserver/defaults/proguard.cfg b/LaunchServer/src/main/resources/pro/gravit/launchserver/defaults/proguard.cfg
index 5a4eb1ef..08b511c1 100644
--- a/LaunchServer/src/main/resources/pro/gravit/launchserver/defaults/proguard.cfg
+++ b/LaunchServer/src/main/resources/pro/gravit/launchserver/defaults/proguard.cfg
@@ -1,7 +1,3 @@
--libraryjars '<java.home>/lib/rt.jar'
--libraryjars '<java.home>/lib/jce.jar'
--libraryjars '<java.home>/lib/ext/nashorn.jar'
--libraryjars '<java.home>/lib/ext/jfxrt.jar'
 -keepattributes SourceFile,LineNumberTable
 -renamesourcefileattribute Source