docs: private void checkObjectCache(ClassDescriptorDef classDef, String checkLevel) throws ConstraintException
      {
          if (!CHECKLEVEL_STRICT.equals(checkLevel))
          {
              return;
          }
          
          ObjectCacheDef objCacheDef = classDef.getObjectCache();
  
          if (objCacheDef == null)
          {
              return;
          }
  
          String objectCacheName = objCacheDef.getName();
  
          if ((objectCacheName == null) || (objectCacheName.length() == 0))
          {
              throw new ConstraintException("No class specified for the object-cache of class "+classDef.getName());
          }
  
          try
          {
              InheritanceHelper helper = new InheritanceHelper();
  
              if (!helper.isSameOrSubTypeOf(objectCacheName, OBJECT_CACHE_INTERFACE))
              {
                  throw new ConstraintException("The class "+objectCacheName+" specified as object-cache of class "+classDef.getName()+" does not implement the interface "+OBJECT_CACHE_INTERFACE);
              }
          }
          catch (ClassNotFoundException ex)
          {
              throw new ConstraintException("Could not find the class "+ex.getMessage()+" on the classpath while checking the object-cache class "+objectCacheName+" of class "+classDef.getName());
          }
      }