Spring Cloud Commons, part of the Spring Cloud platform, provides two feature libraries: Spring Cloud Context and Spring Cloud Commons.
Spring Cloud Context provides utilities and special services for the ApplicationContext of a Spring Cloud application (bootstrap context, encryption, refresh scope and environment endpoints).
Spring Cloud Commons is a set of abstractions and common classes used in different Spring Cloud implementations (eg. Spring Cloud Netflix vs. Spring Cloud Consul).
Patterns such as service discovery, load balancing and circuit breakers lend themselves to a common abstraction layer that can be consumed by all Spring Cloud clients, independent of the implementation (e.g. discovery via Eureka or Consul).
Spring Cloud Context library provides the following key features
Spring Boot Actuator endpoints for manipulating the environment
Spring Cloud Commons library provides the following key features that are used in different Spring Cloud implementations such as Spring Cloud Netflix.
A Spring cloud application creates a new context called the 'bootstrap' context for the main application. Bootstrap context is responsible for loading configuration properties from external sources. Bootstrap properties have higher precedence, so they cannot be overridden by local configuration.
Spring Cloud Commons library provides the @EnableDiscoveryClient annotation that looks for implementations of DiscoveryClient interface using 'spring.factories'.
Example of DiscoveryClient implementations are Spring Cloud Netflix Eureka, Spring Cloud Consul Discovery and Spring Cloud Zookeeper Discovery.
Spring Cloud Commons library provides the ServiceRegistry interface which provides methods to register and deregister customer services.