Edit on GitHub3.2.4. Spring Beans
Spring Beans are classes that are instantiated and populated with dependencies by the Spring Framework container. Beans are designed for implementation of the application’s business logic.
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Spring Bean is a singleton by default, i.e., only one instance of such class exists in each application block. If a singleton bean contains mutable data in its fields (in other words, has a state), it is necessary to synchronize access to these fields. |