This is an old revision of the document!
Table of Contents
Applying changes without restarting Minecraft
Restarting Minecraft can take a hefty amount of time. Thankfully, there are tools that allow you to apply some changes while the game is running.
Reload changed classes
In Eclipse or Intellij IDEA, run Minecraft in debug mode. To apply changes in code,
do run → reload changes classes in Intellij or save in Eclipse.
Note: this only allows you to change method bodies. If you do any other kind of change, You will have to restart.
However, if you use DCEVM, you will be able to do most changes, including adding and removing methods and classes.
Reload textures
After you make a change in a texture (.png) asset, you can reload changed classes and press F3 + T to apply the change without restarting Minecraft.
Reload recipes and loot tables
You can apply any change you made in the data/ directory (including recipes and loot tables) by reloading changed classes and then using the Minecraft command /reload.