java

Spring MVC content negotiation failure

HttpMediaTypeNotAcceptableException.*Could not find acceptable representation

Fixes

1.Add appropriate HttpMessageConverter to configuration
2.Check Accept header matches controller's produces attribute
3.Add jackson-dataformat-xml if XML response is expected

spring-bootcontent-negotiation

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