Agent skill
java-patterns
This skill should be used for Java/Spring patterns, dependency injection, streams, Optional, Kotlin, Spring Boot, Maven, Gradle, JVM backend
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/java-patterns
SKILL.md
Java Patterns
Idiomatic Java/Spring patterns for Java 17+.
Records
public record User(String name, String email) {}
Optional
Optional.ofNullable(user)
.map(User::getEmail)
.orElse("[email protected]");
Streams
List<String> names = users.stream()
.filter(u -> u.isActive())
.map(User::getName)
.collect(Collectors.toList());
Spring Dependency Injection
@Service
public class UserService {
private final UserRepository repo;
public UserService(UserRepository repo) {
this.repo = repo;
}
}
JUnit 5
@Test
void shouldReturnUser() {
User user = service.findById(1L);
assertThat(user.getName()).isEqualTo("test");
}
@ParameterizedTest
@ValueSource(strings = {"a", "b", "c"})
void shouldValidate(String input) {
assertTrue(validator.isValid(input));
}
Recommended Agent Skills
Expand your agent's capabilities with these related and highly-rated skills.
majiayu000/claude-skill-registry
agent-ops-spec
Manage specification documents in .agent/specs/. Use when user provides requirements, acceptance criteria, or feature descriptions that need to be tracked and validated against implementation.
majiayu000/claude-skill-registry
agent-ops-state
Maintain .agent state files. Use at session start, after meaningful steps, and before concluding: read/update constitution/memory/focus/issues/baseline consistently.
majiayu000/claude-skill-registry
agent-ops-spec
Manage specification documents in .agent/specs/. Use when user provides requirements, acceptance criteria, or feature descriptions that need to be tracked and validated against implementation.
majiayu000/claude-skill-registry
agent-ops-testing
Test strategy, execution, and coverage analysis. Use when designing tests, running test suites, or analyzing test results beyond baseline checks.
majiayu000/claude-skill-registry
agent-ops-testing
Test strategy, execution, and coverage analysis. Use when designing tests, running test suites, or analyzing test results beyond baseline checks.
majiayu000/claude-skill-registry
agent-ops-state
Maintain .agent state files. Use at session start, after meaningful steps, and before concluding: read/update constitution/memory/focus/issues/baseline consistently.
Didn't find tool you were looking for?