* Fixed error in TerrainPatch loading

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9067 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core/com/jme3/export/SavableClassUtil.java

@@ -124,15 +124,21 @@ public class SavableClassUtil {
     public static int getSavedSavableVersion(Object savable, Class<? extends Savable> desiredClass, int[] versions){
         Class thisClass = savable.getClass();
         int count = 0;
-        while (thisClass != null && thisClass != desiredClass){
+        
+        while (true) {
             thisClass = thisClass.getSuperclass();
+            if (thisClass != null && SavableClassUtil.isImplementingSavable(thisClass)){
                 count ++;
+            }else{
+                break;
             }
+        }
+
         if (thisClass == null){
             throw new IllegalArgumentException(savable.getClass().getName() + 
                                                " does not extend " + 
                                                desiredClass.getName() + "!");
-        }else if (count > versions.length){
+        }else if (count >= versions.length){
             throw new IllegalArgumentException(savable.getClass().getName() + 
                                                " cannot access version of " +
                                                desiredClass.getName() +