https://github.com/elitemastereric/issue11054

https://github.com/elitemastereric/issue11054

Last synced: about 1 month ago
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• Host: GitHub
• URL: https://github.com/elitemastereric/issue11054
• Owner: EliteMasterEric
• Created: 2023-11-08T06:00:00.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2023-11-19T02:27:39.000Z (about 1 year ago)
• Last Synced: 2023-11-19T03:23:29.146Z (about 1 year ago)
• Language: Java
• Size: 2.93 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# hxjvm-Issue11054

https://github.com/HaxeFoundation/haxe/issues/11054

**Build instructions:**

1. Build the extern JAR: `cd ./project; ./build.bat`

2. Build the Haxe project: `haxe ./compile.hxml`

3. Run the extern JAR to preview the expected output: `cd ./project/out; java test.TestClass`

4. Run the Haxe output JAR to see the erroneous output: `cd ./bin/java; java -jar Main.jar`

**Expected Output**

```

Robot.performTask() called!

Result: 7

Robot.performTask() called!

Result: -1

Robot.performTask() called!

Hello, Robot!

```

**Erroneous Output**

```

Robot.performTask() called!

Result: 7

Robot.performTask() called!

Result: -1

Exception in thread "main" java.lang.ClassCastException: class haxe.root.Main$Closure_main_1 cannot be cast to class test.Robot$GreetRobot (haxe.root.Main$Closure_main_1 and test.Robot$GreetRobot are in unnamed module of loader 'app')

        at test.RobotFactory$2.performTask(RobotFactory.java:19)

        at haxe.root.Main.main(src/Main.hx:16)

        at haxe.root.Main.main(src/Main.hx:1)

```

**Notes**

Inspecting with a Java decompiler like Luyten reveals that `Main_add` and `Closure_main_0` (the auto-generated `Function` classes used for the functional interface) both implement `Robot.MathOperation`.

However, `Closure_main_1` does not implement `Robot.GreetRobot`, only `java.util.function.Function`.