What should developers avoid with Java Core in early-stage projects?
Early Java Core projects should avoid over-engineering with complex design patterns such as full DDD, CQRS, and hexagonal architecture before the application's domain is fully understood. Avoid introducing heavy enterprise frameworks like Jakarta EE or complex Spring Cloud configurations for simple APIs where Spring Boot alone suffices. Do not start new Java projects on Java 8 or 11 without a migration plan - Java 21 LTS with virtual threads offers significant concurrency improvements relevant to modern API development.
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