See: Description
| Annotation Type | Description | 
|---|---|
| NonNull | A common Spring annotation to declare that annotated elements cannot be  null. | 
| NonNullApi | A common Spring annotation to declare that parameters and return values
 are to be considered as non-nullable by default for a given package. | 
| NonNullFields | A common Spring annotation to declare that fields are to be considered as
 non-nullable by default for a given package. | 
| Nullable | A common Spring annotation to declare that annotated elements can be  nullunder
 some circumstance. | 
| UsesJava7 | Deprecated as of 5.0 since the framework is based on Java 8+ now | 
| UsesJava8 | Deprecated as of 5.0 since the framework is based on Java 8+ now | 
| UsesSunHttpServer | Deprecated as of 5.1, along with Spring's Sun HTTP Server support classes | 
| UsesSunMisc | Indicates that the annotated element uses an API from the  sun.miscpackage. | 
org.springframework.util, with no Spring-specific concepts implied.
 Used descriptively within the framework codebase. Can be validated by build-time tools (e.g. FindBugs or Animal Sniffer), alternative JVM languages (e.g. Kotlin), as well as IDEs (e.g. IntelliJ IDEA or Eclipse with corresponding project setup).