diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/JARLauncherBinary.java b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/JARLauncherBinary.java
index bc9caf3a..575b2f81 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/JARLauncherBinary.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/JARLauncherBinary.java
@@ -162,7 +162,7 @@ public void build() throws IOException {
                         String filename = e.getName();
                         output.putNextEntry(IOHelper.newZipEntry(e.getName()));
                         if (filename.endsWith(".class")) {
-                            CharSequence classname = filename.replace('/', '.').subSequence(0,
+                            String classname = filename.replace('/', '.').substring(0,
                                     filename.length() - ".class".length());
                             byte[] bytes;
                             try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream(2048)) {
@@ -231,7 +231,7 @@ private void stdBuild() throws IOException {
                         continue;
                     }
                     if (filename.endsWith(".class")) {
-                        CharSequence classname = filename.replace('/', '.').subSequence(0,
+                        String classname = filename.replace('/', '.').substring(0,
                                 filename.length() - ".class".length());
                         byte[] bytes;
                         try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream(2048)) {
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java
index e52d6a18..0a449d24 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java
@@ -25,7 +25,7 @@ public static interface BuildHook {
 
     @FunctionalInterface
     public static interface Transformer {
-        byte[] transform(byte[] input, CharSequence classname, JARLauncherBinary data);
+        byte[] transform(byte[] input, String classname, JARLauncherBinary data);
     }
 
     private boolean BUILDRUNTIME;
@@ -95,13 +95,13 @@ public boolean buildRuntime() {
         return BUILDRUNTIME;
     }
 
-    public byte[] classTransform(byte[] clazz, CharSequence classname, JARLauncherBinary reader) {
+    public byte[] classTransform(byte[] clazz, String classname, JARLauncherBinary reader) {
         byte[] result = clazz;
         for (Transformer transformer : CLASS_TRANSFORMER) result = transformer.transform(result, classname, reader);
         return result;
     }
 
-    public byte[] proGuardClassTransform(byte[] clazz, CharSequence classname, JARLauncherBinary reader) {
+    public byte[] proGuardClassTransform(byte[] clazz, String classname, JARLauncherBinary reader) {
         byte[] result = clazz;
         for (Transformer transformer : POST_PROGUARD_HOOKS) result = transformer.transform(result, classname, reader);
         return result;
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java
index 321a0b88..b0251c67 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java
@@ -14,7 +14,7 @@
 public class NodeTransformer implements Transformer {
 	@FunctionalInterface
 	public static interface ClassNodeTransformer {
-		void transform(ClassNode node, CharSequence classname, JARLauncherBinary data);
+		void transform(ClassNode node, String classname, JARLauncherBinary data);
 	}
 	
 	private final List<ClassNodeTransformer> transLst;
@@ -28,7 +28,7 @@ public NodeTransformer() {
 	}
 	
 	@Override
-	public byte[] transform(byte[] input, CharSequence classname, JARLauncherBinary data) {
+	public byte[] transform(byte[] input, String classname, JARLauncherBinary data) {
 		ClassReader cr = new ClassReader(input);
 		ClassNode cn = new ClassNode();
 		cr.accept(cn, ClassReader.EXPAND_FRAMES);
diff --git a/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java b/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java
index 365a4414..70f1d288 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java
@@ -55,8 +55,9 @@ public static void makeJsonRequest(RequestInterface request, Runnable callback)
     {
 
     }
+
     @LauncherAPI
-    public static void startTask(Task task)
+    public static void startTask(@SuppressWarnings("rawtypes") Task task)
     {
         try {
             worker.queue.put(task);