AuthenticationPrincipal (spring-security-docs 5.7.8 API)

```
@Target({PARAMETER,ANNOTATION_TYPE})
@Retention(RUNTIME)
@Documented
@Deprecated
public @interface AuthenticationPrincipal
```
Deprecated.
Use AuthenticationPrincipal instead.

Annotation that binds a method parameter or method return value to the Authentication.getPrincipal(). This is necessary to signal that the argument should be resolved to the current user rather than a user that might be edited on a form.

Since:

3.2

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`boolean`	`errorOnInvalidType`	Deprecated. True if a `ClassCastException` should be thrown when the current `Authentication.getPrincipal()` is the incorrect type.

- Element Detail
  - errorOnInvalidType
```
boolean errorOnInvalidType
```
    Deprecated.
    
    True if a ClassCastException should be thrown when the current Authentication.getPrincipal() is the incorrect type. Default is false.
    
    Returns:
    
    Default:
    
    false