Merge pull request #510 from m4ttek/main

fix: fully thread safe DefaultEntitiesMetadata as it is @ApplicationScoped

jnosql-mapping/jnosql-mapping-reflection/src/main/java/org/eclipse/jnosql/mapping/reflection/DefaultEntitiesMetadata.java

@@ -79,17 +79,12 @@ EntityMetadata load(Class<?> type) {
         }
         this.findBySimpleName.put(type.getSimpleName(), metadata);
         this.findByClassName.put(type.getName(), metadata);
-        this.classes.put(type, metadata);
         return metadata;
     }
 
     @Override
     public EntityMetadata get(Class<?> entity) {
-        EntityMetadata metadata = classes.get(entity);
-        if (metadata == null) {
-           return load(entity);
-        }
-        return metadata;
+        return classes.computeIfAbsent(entity, this::load);
     }
 
     @Override