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I will fix spring boot bugs jwt authentication 404 and 500 errors
Tanu P
About this gig
Stuck with a broken backend? Stop wasting time staring at cryptic error logs.
A single 500 internal server error java crash or a broken spring security jwt authentication error can halt your front-end deployment, delay launch, and cost you money. You need an enterprise-grade engineer to isolate the bug and patch the root cause so it never returns.
With 2.5+ years of experience engineering secure backend systems, I specialize in rapid code diagnostics and architectural debugging.
Emergency Bug Fixing Services:
- Auth & Security: Fix spring boot token validation failed issues, expired JWTs, CORS blockages, and broken role access.
- Routing Flaws: Fix 404 not found spring boot paths and incorrect endpoint mappings.
- Database Layers: Troubleshoot spring data jpa postgresql repository errors and Hibernate leaks.
- App Lifecycle: Resolve Maven dependency conflicts and Bean creation exceptions.
IMMEDIATE ACTION REQUIRED: Do not place an order blindly! Click "Contact Seller" right now and send your error logs or stack trace. I will review your issue for FREE and give an instant diagnostic breakdown. Let's fix it!
Get to know Tanu P
Tanu P
Java Backend Developer Spring Boot REST API Specialist
- FromIndia
- Member sinceApr 2021
Languages
English, Hindi
Java Backend Developer with 2.5+ years of experience in Spring Boot, REST APIs, and database-driven applications.
I help clients build secure backend systems and fix Spring Boot issues such as 404/500 errors, JWT authentication, JPA/Hibernate bugs, database connectivity problems, and API performance issues.
Skills:
• Spring Boot
• REST APIs
• JWT & Spring Security
• PostgreSQL & MySQL
• JPA/Hibernate
I deliver clean, secure, and production-ready code with fast communication and reliable support. Feel free to message me before placing an order.
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FAQ
1. What details do you need from me to start fixing my Spring Boot errors?
To quickly debug spring boot rest api issues, please click "Contact Seller" and send me your application logs, the specific stack trace showing the error, and a brief description of what triggers the problem (e.g., when generating a token or calling a database endpoint).
2. Can you fix specific 404 Not Found and 500 Internal Server errors?
Yes, absolutely. I specialize in rapid code diagnostics to fix 404 not found spring boot URL mapping mistakes, resolve fix 500 internal server error java crashes, and repair broken controller routes permanently.
3. My JWT token is expiring incorrectly or failing validation. Can you fix this?
Yes. I will review your security filters and token configuration to resolve any spring security jwt authentication error or spring boot token validation failed issues, ensuring your login system is completely secure.
4. Do you troubleshoot database, JPA, and Hibernate connection bugs?
Yes. I fix connectivity and data flow bottlenecks, including configuration issues with your spring data jpa postgresql repository, MySQL driver conflicts, lazy loading exceptions, and connection pool leaks.
