| Package | Description | 
|---|---|
| javax.annotation | |
| javax.annotation.meta | 
| Class and Description | 
|---|
| MatchesPattern This annotation is used to denote String values that should always match given pattern. | 
| Nonnegative This annotation is used to annotate a value that should only contain nonnegative values. | 
| Nonnull The annotated element must not be null. | 
| Nullable The annotated element could be null under some circumstances. | 
| RegEx This qualifier is used to denote String values that should be a Regular
 expression. | 
| Syntax This annotation a value that is of a particular syntax, such as Java syntax
 or regular expression syntax. | 
| Untainted This annotation is used to denote String values that are untainted,
 i.e. properly validated. | 
| Class and Description | 
|---|
| Nonnull The annotated element must not be null. | 
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