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Application Startup Steps

This part of the appendix lists the existing StartupSteps that the core container is instrumented with.

The name and detailed information about each startup step is not part of the public contract and is subject to change; this is considered as an implementation detail of the core container and will follow its behavior changes.

Table 1. Application startup steps defined in the core container
Name	Description	Tags
`spring.beans.instantiate`	Instantiation of a bean and its dependencies.	`beanName` the name of the bean, `beanType` the type required at the injection point.
`spring.beans.smart-initialize`	Initialization of `SmartInitializingSingleton` beans.	`beanName` the name of the bean.
`spring.context.annotated-bean-reader.create`	Creation of the `AnnotatedBeanDefinitionReader`.
`spring.context.base-packages.scan`	Scanning of base packages.	`packages` array of base packages for scanning.
`spring.context.beans.post-process`	Beans post-processing phase.
`spring.context.bean-factory.post-process`	Invocation of the `BeanFactoryPostProcessor` beans.	`postProcessor` the current post-processor.
`spring.context.beandef-registry.post-process`	Invocation of the `BeanDefinitionRegistryPostProcessor` beans.	`postProcessor` the current post-processor.
`spring.context.component-classes.register`	Registration of component classes through `AnnotationConfigApplicationContext#register`.	`classes` array of given classes for registration.
`spring.context.config-classes.enhance`	Enhancement of configuration classes with CGLIB proxies.	`classCount` count of enhanced classes.
`spring.context.config-classes.parse`	Configuration classes parsing phase with the `ConfigurationClassPostProcessor`.	`classCount` count of processed classes.
`spring.context.refresh`	Application context refresh phase.