PrioritySphere visitor clears list of priorities when a facet is processed repeatedly

Comparison/src/main/java/cz/fidentis/analyst/visitors/mesh/PrioritySphere.java

@@ -67,6 +67,8 @@ public class PrioritySphere extends MeshVisitor  {
     public void visitMeshFacet(MeshFacet facet) {
         final List<MeshPoint> vertices = facet.getVertices();
         
+        final List<Double> prioritiesList = new ArrayList<>(vertices.size());
+        
         for (int i = 0; i < vertices.size(); i++) {
             final double distance = sphereCenterPosition.distance(vertices.get(i).getPosition());
             final double priority;
@@ -76,10 +78,11 @@ public class PrioritySphere extends MeshVisitor  {
                 priority = 1 - distance / sphereRadius;
             }
             
-            synchronized(this) {
-                priorities.computeIfAbsent(facet, meshFacet -> new ArrayList<>())
-                        .add(priority);
-            }
+            prioritiesList.add(priority);
+        }
+        
+        synchronized(this) {
+            priorities.put(facet, prioritiesList);
         }
     }
 }