findbugs: Switch statement found in org.apache.poi.sl.draw.DrawShape.applyTransform(Graphics2D) where default case is missing

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1765530 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/sl/draw/DrawShape.java

@@ -135,6 +135,8 @@ public class DrawShape implements Drawable {
                     graphics.translate(-centerX, -centerY);
                 }
                 break;
+            default:
+                throw new RuntimeException("unexpected transform code " + ch);
             }
         }
     }