added a check if a shape object was already processed it will not be processed...

added a check if a shape object was already processed it will not be processed again in the recursion.

src/main/java/eu/gaiax/sdcreationwizard/api/ConversionService.java

@@ -69,17 +69,19 @@ public class ConversionService {
         }
 
         int depth = 0;
+        visitedShapes.put(shape, depth);
+
         for (ShapeProperties property : shape.getConstraints()) {
             String children = property.getChildren();
             if (children != null) {
                 VicShape childShape = getShapeByName(children, shapes);
                 if (childShape != null) {
                     depth = Math.max(depth, 1 + calculateDepth(childShape, shapes, visitedShapes));
+                    visitedShapes.put(shape, Math.max(depth, visitedShapes.get(shape)));
                 }
             }
         }
 
-        visitedShapes.put(shape, depth);
         return depth;
     }