java

Hibernate multiple bag fetch not allowed

MultipleBagFetchException.*cannot simultaneously fetch multiple bags

Fixes

1.Change one collection from List to Set
2.Use separate queries for each collection (Hibernate 6 supports this)
3.Use @OrderColumn to make it an indexed list instead of bag

hibernatefetchjpa

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