java
NullPointerException thrown
java\.lang\.NullPointerException
Fixes
- 1.Add null check before accessing the object
- 2.Use Optional<T> to wrap potentially null values
- 3.Initialize the variable at declaration time
- 4.Use @NonNull annotation to catch at compile time
nullpointerruntime
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