Review a Spring REST Controller for Correctness and Per-Request Waste
Company: Schwab
Role: Java Developer
Category: Software Engineering Fundamentals
Difficulty: easy
Interview Round: Onsite
Overview: Review a Spring REST controller by tracing success and failure paths, HTTP semantics, validation, and service boundaries. The answer examines centralized error handling, safe dependency reuse, per-request allocation, timeouts, pagination, concurrency, and focused controller tests.
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