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package com.myapp.domain.model; public class Product private final String id; private String name; private BigDecimal price;

package com.myapp.domain.ports.outbound; public interface ProductRepositoryPort Product save(Product product); Optional<Product> findById(String id); package com

package com.myapp.adapters.outbound.persistence; @Component public class ProductJpaAdapter implements ProductRepositoryPort private final ProductSpringJpaRepository jpaRepository; private String name