parallel asynchronous access to the method could crash it

model/src/main/java/lcsb/mapviewer/modelutils/map/ElementUtils.java

@@ -98,11 +98,11 @@ public final class ElementUtils {
       Reflections reflections = new Reflections("lcsb.mapviewer.model.map");
       Set<Class<? extends BioEntity>> classes = reflections.getSubTypesOf(BioEntity.class);
 
-      annotatedObjectTree = new ClassTreeNode(BioEntity.class);
-      annotatedObjectTree.setData(false);
+      ClassTreeNode result = new ClassTreeNode(BioEntity.class);
+      result.setData(false);
 
       Map<Class<?>, ClassTreeNode> map = new LinkedHashMap<>();
-      map.put(Object.class, annotatedObjectTree);
+      map.put(Object.class, result);
       for (Class<? extends BioEntity> class1 : classes) {
         if (map.get(class1) == null) {
           ClassTreeNode node = new ClassTreeNode(class1);
@@ -138,7 +138,7 @@ public final class ElementUtils {
       for (ClassTreeNode node : map.values()) {
         Collections.sort(node.getChildren(), new ClassTreeNodeNameComparator());
       }
-
+      annotatedObjectTree = result;
     }
     return annotatedObjectTree;
   }