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Selling Self-Hosted Developer Tools: How Did You Get Your First 5 Customers?

Hey developers! I'm an indie developer building CodeGuard AI , a self-hosted AI-powered GitHub pull-request review tool built using Java 21 and Spring Boot. Unlike SaaS products, CodeGuard AI is distributed as source code. Buyers download it and deploy it in their own infrastructure. I've listed it for sale, but I'm still at zero sales . I'm now trying to figure out the best way to get my first…

We haven't written up this one. Dev.to has the full story — the link below goes straight to it.

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How Java Exceptions Work: A Quick Walkthrough

You write try / catch every day. But when a throw runs, what does the JVM actually do ? There is no magic: there is a table lookup, a stack unwinding procedure written down in the JVM specification…

  • Java exceptions are ordinary objects extending Throwable class
  • Thrown programmatically via athrow instruction or JVM abnormal detection
  • Exception contains stack trace of execution stack frames

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