java

Java class compiled with newer version than runtime

UnsupportedClassVersionError.*class file version \d+.*this Java Runtime only recognizes

Fixes

1.Upgrade runtime JDK to match or exceed compilation target
2.Set --release flag in compiler to target older JVM version
3.Check JAVA_HOME points to correct JDK version

jvmversion

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