minecraft-mod-crash-handler

You can catch Fabric mod startup errors by wrapping onInitialize and onInitializeClient flows in a try-catch block that captures initialization errors and stack traces without stopping the game process.

Minecraft mods leave a blank window when initialization fails because the render thread dies before showing feedback; displaying a Swing error popup with recent log lines resolves this.

Yes, you can display a crash report popup using AWT or Swing UI windows, which can render exceptions and recent log output even when the Minecraft render thread has crashed during startup.

Yes, this crash handler works for both client and server startup by wrapping onInitialize for the server and onInitializeClient for the client, capturing initialization failures in either flow.

The best way to persist Minecraft mod crash reports is to write a readable report to disk after catching the exception, ensuring the initialization failure can be inspected after the popup is closed.

You should avoid rethrowing exceptions in a Fabric crash handler when the goal is to keep the game running after a mod crash, allowing the player to access a usable Minecraft launch and review the error report.