Allocation API update.

Change-Id: I9b4a71f9e94c7d3978f06b7971051ab4f8472503

graphics/java/android/renderscript/BaseObj.java

@@ -52,6 +52,9 @@ class BaseObj {
         if (mDestroyed) {
             throw new RSInvalidStateException("using a destroyed object.");
         }
+        if (mID == 0) {
+            throw new RSRuntimeException("Internal error: Object id 0.");
+        }
         return mID;
     }