Class<E> clazz) {
    Map<E, LockGraphNode> existing = (Map<E, LockGraphNode>) lockGraphNodesPerType.get(clazz);
    if (existing != null) {
      return existing;
    }
    Map<E, LockGraphNode> created = createNodes(clazz);
    existing = (Map<E, LockGraphNode>) lockGraphNodesPerType.putIfAbsent(clazz, created);
    return MoreObjects.firstNonNull(existing, created);
  }

                throw new ContainerNotAvailableException(clazz.getCanonicalName(), e);
            }
            throw new ContainerNotAvailableException(clazz.getCanonicalName());
        } catch (final ComponentNotFoundException | AutoBindingFailureException e) {
            if (componentMap.containsKey(clazz.getCanonicalName())) {
                return (T) componentMap.get(clazz.getCanonicalName());
            }
            throw e;
        }

    private java.lang.reflect.Field findField(Class<?> clazz, String fieldName) {
        while (clazz != null) {
            try {
                return clazz.getDeclaredField(fieldName);
            } catch (final NoSuchFieldException e) {
                clazz = clazz.getSuperclass();
            }
        }
        throw new RuntimeException("Field not found: " + fieldName);