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--- tutorial:mixin_hotswaps [2019/10/24 22:45] – clarify DCEVM draylar
+++ tutorial:mixin_hotswaps [2025/04/11 13:23] (current) – Fix punctuation cph101
@@ Line 6: / Line 6: @@
 {{https://i.imgur.com/fUrhss5.png}}
-Copy the full path to the jar and open up your run configurations. Under ''Minecraft Client'', expand the VM options tab. You'll need to set the ''-javaagent'' flag to the path of the mixin jar:
+Copy the full path to the jar and open up your run configurations. Under ''Minecraft Client'', expand the VM options tab. You'll need to set the ''-javaagent'' flag to the path of the mixin jar.
+Optionally, you can add the ''-XX:+AllowEnhancedClassRedefinition'' flag to enable parameters to be changed, and fields or methods to be added/removed:
 {{https://i.imgur.com/SuW9MlV.png}}
-Run your game. You can now reload mixins using the same rules as normal:
+You can do these things if you also add the ''-XX:+AllowEnhancedClassRedefinition'' VM option.
-  * no adding or removing methods
-  * no changing method parameters
-  * no adding or removing fields
-=== Notes ===
+To recompile your mixin in IntelliJ, use the ''Recompile'' option in the ''Build'' menu. The default keybind for this is ''Ctrl+Shift+F9''.
-In my experience, Mixin hot-swapping didn't fully work until I updated to JDK 1.8.0 231 (latest).
-DCEVM does not support mixin swapping from what I can see:
+=== Notes ====
+DCEVM does not officially support mixin swapping:
   * When run on Java 1.8:181, DCEVM and Mixin reloads do not work.
   * When run on DCEVM Java 11, you can reload, but the hot swap task freezes.
+  * When run on JetBrains Runtime's Java 17 fork (with DCEVM), Mixin hotswapping and DCEVM work properly.
-If you're able to get DCEVM and Mixin swapping to work together, let us know!