java
Invalid class cast
java\.lang\.ClassCastException:\s*(.+)\s*cannot be cast to\s*(.+)
Fixes
- 1.Use instanceof check before casting
- 2.Review generic type parameters for type erasure issues
- 3.Use pattern matching (Java 16+) instead of explicit casts
castingtypes
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