Does it support Lombok for boilerplate reduction?

Absolutely. The skill encourages using @RequiredArgsConstructor to maintain constructor injection benefits while keeping the codebase clean and concise.

Can this skill help with migrating legacy Spring code?

Yes, it includes specific workflows for identifying field injection and refactoring it into modern, testable constructor-based patterns.

Why does this skill prioritize constructor injection?

Constructor injection ensures that dependencies are immutable and explicit, allowing for easier unit testing and preventing partially initialized objects.

How does it handle optional dependencies?

It utilizes guarded setters with @Autowired(required = false) or ObjectProvider to provide deterministic defaults, avoiding null pointer exceptions.

Spring Boot Dependency Injection

Name: Spring Boot Dependency Injection
Author: pur3v4d3r

bypur3v4d3r

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API Development

Standardizes Spring Boot dependency injection using constructor-first patterns for highly testable and maintainable Java applications.

About

This skill equips Claude with specialized workflows for implementing robust dependency injection in Spring Boot environments, prioritizing constructor injection to ensure class immutability and framework-agnostic testing. It provides structured guidance on resolving bean ambiguity with qualifiers, managing optional collaborators through guarded setters or providers, and validating wiring with unit and slice tests. It is particularly useful for developers modernizing legacy codebases or building new services that require clear, deterministic configuration and clean architecture principles.

Key Features

Validation techniques for framework-free unit testing and Spring slice tests
Strategies for resolving bean ambiguity using @Primary and @Qualifier
Migration workflows to replace legacy field injection with modern practices
Constructor-first injection patterns for mandatory dependencies
Safe handling of optional collaborators using ObjectProvider or guarded setters
1 GitHub stars

Use Cases

Refactoring legacy Spring applications to remove @Autowired field injection
Improving application testability by ensuring dependencies are explicit and mockable
Designing modular Spring Boot services with pluggable or optional features

About

Key Features

Validation techniques for framework-free unit testing and Spring slice tests
Strategies for resolving bean ambiguity using @Primary and @Qualifier
Migration workflows to replace legacy field injection with modern practices
Constructor-first injection patterns for mandatory dependencies
Safe handling of optional collaborators using ObjectProvider or guarded setters
1 GitHub stars

Use Cases

Refactoring legacy Spring applications to remove @Autowired field injection
Improving application testability by ensuring dependencies are explicit and mockable
Designing modular Spring Boot services with pluggable or optional features