- Fixed NPE when passing a null cursor to reset cursor to default.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10355 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/lwjgl/com/jme3/input/lwjgl/LwjglMouseInput.java

@@ -153,14 +153,17 @@ public class LwjglMouseInput implements MouseInput {
 
     public void setNativeCursor(JmeCursor jmeCursor) {
         try {
-            Cursor newCursor = new Cursor(
-                    jmeCursor.getWidth(),
-                    jmeCursor.getHeight(),
-                    jmeCursor.getXHotSpot(),
-                    jmeCursor.getYHotSpot(),
-                    jmeCursor.getNumImages(),
-                    jmeCursor.getImagesData(),
-                    jmeCursor.getImagesDelay());
+            Cursor newCursor = null;
+            if (jmeCursor != null) {
+                 newCursor = new Cursor(
+                        jmeCursor.getWidth(),
+                        jmeCursor.getHeight(),
+                        jmeCursor.getXHotSpot(),
+                        jmeCursor.getYHotSpot(),
+                        jmeCursor.getNumImages(),
+                        jmeCursor.getImagesData(),
+                        jmeCursor.getImagesDelay());
+            }
             Mouse.setNativeCursor(newCursor);
         } catch (LWJGLException ex) {
             Logger.getLogger(LwjglMouseInput.class.getName()).log(Level.SEVERE, null, ex);