# Uses of Package
org.springframework.core.metrics

- Packages that use org.springframework.core.metrics
  Package | Description
  --- | ---
  org.springframework.beans.factory.config | SPI interfaces and configuration-related convenience classes for bean factories.
  org.springframework.beans.factory.support | Classes supporting the `org.springframework.beans.factory` package.
  org.springframework.context | This package builds on the beans package to add support for message sources and for the Observer design pattern, and the ability for application objects to obtain resources using a consistent API.
  org.springframework.context.annotation | Annotation support for the Application Context, including JSR-250 "common" annotations, component-scanning, and Java-based metadata for creating Spring-managed objects.
  org.springframework.context.support | Classes supporting the org.springframework.context package, such as abstract base classes for ApplicationContext implementations and a MessageSource implementation.
  org.springframework.core.metrics | Support package for recording metrics during application startup.
  org.springframework.core.metrics.jfr | Support package for recording startup metrics using Java Flight Recorder.

- Classes in org.springframework.core.metrics used by org.springframework.beans.factory.config
  Class and Description
  ApplicationStartup Instruments the application startup phase using `steps`.

- Classes in org.springframework.core.metrics used by org.springframework.beans.factory.support
  Class and Description
  ApplicationStartup Instruments the application startup phase using `steps`.

- Classes in org.springframework.core.metrics used by org.springframework.context
  Class and Description
  ApplicationStartup Instruments the application startup phase using `steps`.

- Classes in org.springframework.core.metrics used by org.springframework.context.annotation
  Class and Description
  ApplicationStartup Instruments the application startup phase using `steps`.

- Classes in org.springframework.core.metrics used by org.springframework.context.support
  Class and Description
  ApplicationStartup Instruments the application startup phase using `steps`.

- Classes in org.springframework.core.metrics used by org.springframework.core.metrics
  Class and Description
  ApplicationStartup Instruments the application startup phase using `steps`.
  StartupStep Step recording metrics about a particular phase or action happening during the `ApplicationStartup`.
  StartupStep.Tags Immutable collection of `StartupStep.Tag`.

- Classes in org.springframework.core.metrics used by org.springframework.core.metrics.jfr
  Class and Description
  ApplicationStartup Instruments the application startup phase using `steps`.
  StartupStep Step recording metrics about a particular phase or action happening during the `ApplicationStartup`.