diff --git a/GUI/src/main/java/cz/fidentis/analyst/newgui/canvas/RotationAnimator.java b/GUI/src/main/java/cz/fidentis/analyst/newgui/canvas/RotationAnimator.java
index 6b2acecd761d7680fa731a94d61d0d4b932a41c7..bb35f1fb145acacf35c5cd3c93f4e48a290d5952 100644
--- a/GUI/src/main/java/cz/fidentis/analyst/newgui/canvas/RotationAnimator.java
+++ b/GUI/src/main/java/cz/fidentis/analyst/newgui/canvas/RotationAnimator.java
@@ -1,6 +1,5 @@
 package cz.fidentis.analyst.newgui.canvas;
 
-import com.jogamp.opengl.awt.GLCanvas;
 import com.jogamp.opengl.util.FPSAnimator;
 import cz.fidentis.analyst.newgui.scene.Camera;
 import java.util.Timer;
@@ -15,6 +14,9 @@ import java.util.TimerTask;
  */
 public class RotationAnimator {
     
+    /**
+     * @author Radek Oslejsek
+     */
     public enum Direction {
         ROTATE_LEFT,
         ROTATE_RIGHT,
@@ -97,6 +99,8 @@ public class RotationAnimator {
                     case ZOOM_OUT:
                         camera.zoomOut(3);
                         break;
+                    default:
+                        throw new UnsupportedOperationException();
                 }
             }
         };
@@ -130,6 +134,8 @@ public class RotationAnimator {
                 case ZOOM_OUT:
                     camera.zoomOut(30);
                     break;
+                default:
+                    throw new UnsupportedOperationException();
             }
         }
         startClickTime = 0;
diff --git a/GUI/src/main/java/cz/fidentis/analyst/newgui/scene/Scene.java b/GUI/src/main/java/cz/fidentis/analyst/newgui/scene/Scene.java
index db2b7686185ea9bf502f3f051ae0f708345b1b74..3d721e735e9fa76e4d931bf42ea41ab08c3931b0 100644
--- a/GUI/src/main/java/cz/fidentis/analyst/newgui/scene/Scene.java
+++ b/GUI/src/main/java/cz/fidentis/analyst/newgui/scene/Scene.java
@@ -35,6 +35,11 @@ public class Scene {
     
     private final Camera camera = new Camera();
     
+    /**
+     * Adds a drawable object into the scene.
+     * 
+     * @param dr Drawable object
+     */
     public void addDrawale(Drawable dr) {
         if (dr != null) {
             drawables.add(dr);
diff --git a/codestyle.xml b/codestyle.xml
index 4623da3b0a387cfef48c74f26b9db01597f343e6..a8c9f17d6aa285631f85aaa16052945a151de233 100644
--- a/codestyle.xml
+++ b/codestyle.xml
@@ -63,7 +63,7 @@
             <property name="max" value="220"/>
         </module>-->
         <module name="MethodLength">
-            <property name="max" value="70"/>
+            <property name="max" value="200"/>
             <property name="countEmpty" value="false"/>
         </module>
         <module name="ParameterNumber"/>