#63541 - NullPointerException from XSLFSimpleShape.getAnchor for empty xfrm tags

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1866810 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFSimpleShape.java

@@ -151,7 +151,7 @@ public abstract class XSLFSimpleShape extends XSLFShape
     public Rectangle2D getAnchor() {
 
         CTTransform2D xfrm = getXfrm(false);
-        if (xfrm == null) {
+        if (xfrm == null || !xfrm.isSetOff()) {
             return null;
         }