java
Spring Boot reactive web server startup failure
ApplicationContextException.*Unable to start.*reactive.*web server
Fixes
- 1.Ensure spring-boot-starter-webflux is on classpath (not spring-boot-starter-web)
- 2.Check for port conflicts with server.port property
- 3.Remove conflicting servlet dependencies from classpath
spring-bootwebflux
Related Errors
java3 fixes
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
java3 fixes
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
java3 fixes
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