[devin-ai-integration]

Summary

Adds SLF4J logging instrumentation to the UsersApi controller for the createUser() and userLogin() methods. Entry logs capture non-sensitive request parameters (username for registration, email for login), and exit logs mark successful method completion.

Changes:

• Added SLF4J Logger import and static logger declaration
• Added INFO-level entry/exit logging to createUser() method (logs username only)
• Added INFO-level entry/exit logging to userLogin() method (logs email only)

Passwords and other sensitive data are explicitly NOT logged.

Review & Testing Checklist for Human

• Verify no sensitive data (passwords) is being logged in the implementation
• Test user registration endpoint (POST /users) and confirm entry/exit logs appear
• Test user login endpoint (POST /users/login) and confirm entry/exit logs appear

Recommended test plan: Start the application with ./gradlew bootRun, then make requests to /users and /users/login endpoints. Check application logs to verify the INFO-level entry/exit messages appear with the expected format.

Notes

• Exit logging for userLogin() only occurs on successful authentication; failed attempts throw InvalidAuthenticationException before reaching the exit log
• Compilation verified locally with ./gradlew compileJava --no-daemon
• Local testing verified logging output appears correctly:
  • Entering createUser() with username=testuser123 / Exiting createUser()
  • Entering userLogin() with email=test@example.com / Exiting userLogin()
• CI failure is unrelated to code changes (deprecated actions/cache: v2 in repository workflow)

Link to Devin run: https://partner-workshops.devinenterprise.com/sessions/46c18c1e23cd4a188d0e0952bb899549

[devin-ai-integration]

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