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$
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I will fix your java spring boot bug, error or exception fast
Sarmad Habib
About this gig
Your Java app throws an exception you can't trace. Or it compiled fine yesterday and won't start today.
I'm a Java developer with 5+ years on production systems. Most of that time has been spent inside existing codebases finding out why something broke, fixing it, and explaining what happened.
WHAT I FIX
- Runtime exceptions: NullPointerException, ClassNotFound, stack traces you can't decode
- Spring Boot: bean wiring, dependency injection, autoconfiguration conflicts
- Maven and Gradle: build failures, dependency version conflicts
- REST API bugs: wrong responses, serialization, error handling
- Hibernate and JPA: lazy loading, N+1 queries, mapping problems
- Tomcat deployment: app won't start, port conflicts, memory errors
WHAT YOU GET
Corrected source files, plus a plain explanation of what was wrong and how to avoid it next time.
BACKGROUND
Migrated production apps from JDK 8 to 21 and Tomcat 9 to 11. Debugged live memory-exhaustion incidents on running servers.
Message me with your error before ordering and I'll tell you which package fits.
Get to know Sarmad Habib
Sarmad Habib
Software Engineer
- FromPakistan
- Member sinceSep 2024
- Avg. response time1 hour
Languages
English
Java developer, 5+ years on production systems that can't go down.
Most of my work is inside existing codebases: finding why something
broke, fixing it, and explaining what happened. I've migrated
production apps from JDK 8 to 21 and Tomcat 9 to 11, and debugged
live out-of-memory incidents on running servers.
Day to day: Java 8-21, Spring Boot, Hibernate, Maven, Oracle and
PostgreSQL, Tomcat on Linux, GitLab CI/CD.
Message me with your problem before ordering. I'll say honestly
whether I'm the right person.
My Portfolio
Other Software Development Services I Offer
FAQ
Can you fix it if I only send the error message?
Sometimes, but not reliably. A stack trace tells me where it broke, not why. Send the relevant code too and you'll get a real fix instead of a guess.
What Java versions do you work with?
Java 8 through 25, including apps mid-migration between them.
Will you sign an NDA?
Yes. Send it before ordering.
Can you work directly in my repo?
Yes->GitHub, GitLab or Bitbucket. Add me as a collaborator after you order.
What if you can't fix it?
I'll tell you within the first few hours and cancel, so you don't lose money or time.
