- 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

@@ -153,7 +153,9 @@ public class LwjglMouseInput implements MouseInput {
 
     public void setNativeCursor(JmeCursor jmeCursor) {
         try {
-            Cursor newCursor = new Cursor(
+            Cursor newCursor = null;
+            if (jmeCursor != null) {
+                 newCursor = new Cursor(
                         jmeCursor.getWidth(),
                         jmeCursor.getHeight(),
                         jmeCursor.getXHotSpot(),
@@ -161,6 +163,7 @@ public class LwjglMouseInput implements MouseInput {
                         jmeCursor.getNumImages(),
                         jmeCursor.getImagesData(),
                         jmeCursor.getImagesDelay());
+            }
             Mouse.setNativeCursor(newCursor);
         } catch (LWJGLException ex) {
             Logger.getLogger(LwjglMouseInput.class.getName()).log(Level.SEVERE, null, ex);