Deploy your Java app to Railway
Step-by-step deployment help for Java apps on Railway. We fix Java-specific deployment issues, configure Railway, and get your app live. From $19.
Java issues we fix before deploying
Common Java problems that affect Railway deployments.
SQL injection via string concatenation
Building SQL queries with string concatenation instead of PreparedStatement or parameterized JPA queries, allowing attackers to manipulate database operations.
Missing input validation
Controller endpoints accept request bodies without Bean Validation annotations (@Valid, @NotNull, @Size), allowing malformed data into business logic.
Thread safety issues
Mutable shared state accessed from multiple threads without synchronization, volatile, or concurrent collections — causing race conditions in production.
Resource leaks
Database connections, streams, and file handles opened without try-with-resources, leading to connection pool exhaustion and OutOfMemoryErrors.
Railway deployment issues we check for
Common Railway problems that break Java apps in production.
Nixpacks detects the wrong build system
Monorepo projects or apps with multiple package managers confuse Nixpacks auto-detection, resulting in incorrect build commands and failed deployments.
Volume data lost on redeploy
AI-generated apps store uploaded files or SQLite databases on the filesystem without configuring Railway volumes, losing all data on each new deployment.
Private networking misconfigured between services
Internal service communication uses public URLs instead of Railway's private network (*.railway.internal), adding latency and exposing internal APIs publicly.
Health check endpoint missing
Railway restarts services that fail health checks. AI-generated servers often lack a /health endpoint, causing unnecessary restart loops.
Start with a self-serve audit
Get a professional review of your Java project before deploying to Railway.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
How do I deploy a Java app to Railway?
We handle Java deployments to Railway end to end. Start with our code audit ($19) to identify deployment blockers specific to your Java project, then we configure Railway, fix issues, and get your app live in production.
What Java issues affect Railway deployments?
Java projects commonly have sql injection via string concatenation and missing input validation. On Railway, these combine with nixpacks detects the wrong build system and volume data lost on redeploy to cause deployment failures.
Can SpringCode deploy my Java project to Railway?
Yes. We specialize in deploying Java applications to Railway. We audit your codebase for Java-specific issues, configure Railway correctly, and handle the full deployment so your app runs reliably in production.
What does Java deployment to Railway cost?
Our code audit ($19) identifies all Railway deployment blockers in your Java project. Full deployment assistance is scoped with a fixed quote after the audit — no hourly billing or surprise charges.
Related resources
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Need help deploying Java to Railway?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.