SpringBeanToolCallbackResolver has a problem with bean cache inside

[Forest-Fairy]

This resolver will resolve and cache a tool but what will happen if a tool bean has been unregistered?
`
@OverRide
public ToolCallback resolve(String toolName) {
Assert.hasText(toolName, "toolName cannot be null or empty");

	logger.debug("ToolCallback resolution attempt from Spring application context");

	ToolCallback resolvedToolCallback = toolCallbacksCache.get(toolName);

	if (resolvedToolCallback != null) {
		return resolvedToolCallback;
	}

	ResolvableType toolType = TypeResolverHelper.resolveBeanType(applicationContext, toolName);
	ResolvableType toolInputType = (ResolvableType.forType(Supplier.class).isAssignableFrom(toolType))
			? ResolvableType.forType(Void.class) : TypeResolverHelper.getFunctionArgumentType(toolType, 0);

	String toolDescription = resolveToolDescription(toolName, toolInputType.toClass());
	Object bean = applicationContext.getBean(toolName);

	resolvedToolCallback = buildToolCallback(toolName, toolType, toolInputType, toolDescription, bean);

	toolCallbacksCache.put(toolName, resolvedToolCallback);

	return resolvedToolCallback;
}

`
I think it has better to implement ApplicationEventListener interface in order to remove the cache when bean has been removed in application context