java

Spring Security no authentication credentials found

spring\.security.*AuthenticationCredentialsNotFoundException

Fixes

1.Ensure SecurityContext is populated (authentication filter ran)
2.Check filter order - authentication must come before authorization
3.For tests, use @WithMockUser or SecurityContextHolder.setContext()

spring-securityauthentication

Related Errors

Spring Boot bean not found in application context

NoSuchBeanDefinitionException.*No qualifying bean of type

•Add @Component/@Service/@Repository annotation to the class
•Ensure the package is scanned: check @ComponentScan or @SpringBootApplication basePackages

Spring circular dependency during bean creation

BeanCurrentlyInCreationException.*Requested bean is currently in creation

•Use @Lazy annotation on one of the circular dependencies
•Refactor to break the circular dependency with an event or interface

Spring Boot unsatisfied dependency injection

UnsatisfiedDependencyException.*Error creating bean with name

•Verify the required bean exists and is properly annotated
•Use @Qualifier to disambiguate when multiple beans of same type exist