diff --git a/src/main/java/cactusServer/utils/JSONProvider.java b/src/main/java/cactusServer/utils/JSONProvider.java
index 09819fb..01817b9 100644
--- a/src/main/java/cactusServer/utils/JSONProvider.java
+++ b/src/main/java/cactusServer/utils/JSONProvider.java
@@ -16,23 +16,23 @@
 
 @Provider()
 @Produces(MediaType.APPLICATION_JSON)
-public class JSONProvider implements MessageBodyWriter {
+public class JSONProvider implements MessageBodyWriter<Object> {
     @Override
-    public long getSize(Object arg0, Class arg1, Type arg2, Annotation[] arg3, MediaType arg4) {
+    public long getSize(Object obj, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
         try {
-            return JSON.encode(arg0).getBytes("UTF-8").length;
+            return JSON.encode(obj).getBytes("UTF-8").length;
         } catch (Exception e) {
             throw new RuntimeException(e);
         }
     }
 
     @Override
-    public boolean isWriteable(Class arg0, Type arg1, Annotation[] arg2, MediaType arg3) {
+    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
         return true;
     }
 
     @Override
-    public void writeTo(Object arg0, Class arg1, Type arg2, Annotation[] arg3, MediaType arg4, MultivaluedMap arg5, OutputStream arg6) throws IOException, WebApplicationException {
-        JSON.encode(arg0, arg6);
+    public void writeTo(Object obj, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
+        JSON.encode(obj, entityStream);
     }
 }
\ No newline at end of file