[BUG]NoSuchMethodError

[iHsin]

FUNCTION: net.mamoe.mirai.console.command.CommandManager.INSTANCE.registerCommand
调用出错,且 IDE 下无报错

Starting mirai-console...
Backend: version 2.6.1, built on 2021-04-16 22:23:22.
Frontend Android: version 3.1.7, provided by Mamoe Technologies
Welcome to visit https://mirai.mamoe.net/
Successfully loaded plugin Chat Command
Successfully loaded plugin ExamplePlugin
Prepared built-in commands: autoLogin, help, login, permission, status, stop
java.lang.NoSuchMethodError: No static method registerCommand$default(Lnet/mamoe/mirai/console/command/CommandManager;Lnet/mamoe/mirai/console/command/Command;ZILjava/lang/Object;)Z in class Lnet/mamoe/mirai/console/command/CommandManager; or its super classes (declaration of 'net.mamoe.mirai.console.command.CommandManager' appears in /data/app/io.github.mzdluo123.mirai.android-_zxLVbU-9uXontlALasueQ==/base.apk!classes4.dex)
	at com.example.maPluginTemplate.PluginMain.onEnable(PluginMain.kt:19)
	at net.mamoe.mirai.console.internal.plugin.JvmPluginInternal.internalOnEnable$mirai_console(JvmPluginInternal.kt:113)
	at net.mamoe.mirai.console.internal.plugin.BuiltInJvmPluginLoaderImpl.enable(BuiltInJvmPluginLoaderImpl.kt:119)
	at net.mamoe.mirai.console.plugin.jvm.JvmPluginLoader$BuiltIn.enable(Unknown Source:7)
	at net.mamoe.mirai.console.plugin.jvm.JvmPluginLoader$BuiltIn.enable(JvmPluginLoader.kt:36)
	at net.mamoe.mirai.console.plugin.PluginManager$-CC.$default$enablePlugin(PluginManager.kt:129)
	at net.mamoe.mirai.console.internal.plugin.PluginManagerImpl.enablePlugin(Unknown Source:0)
	at net.mamoe.mirai.console.internal.plugin.PluginManagerImpl.enableAllLoadedPlugins$mirai_console(PluginManagerImpl.kt:172)
	at net.mamoe.mirai.console.internal.MiraiConsoleImplementationBridge.doStart$mirai_console(MiraiConsoleImplementationBridge.kt:208)
	at net.mamoe.mirai.console.MiraiConsoleImplementation$Companion.start(MiraiConsoleImplementation.kt:276)
	at io.github.mzdluo123.mirai.android.service.BotService.startConsole(BotService.kt:172)
	at io.github.mzdluo123.mirai.android.service.BotService.onStartCommand(BotService.kt:98)
	at android.app.ActivityThread.handleServiceArgs(Unknown Source:40)
	at android.app.ActivityThread.access$1900(Unknown Source:0)
	at android.app.ActivityThread$H.handleMessage(Unknown Source:613)
	at android.os.Handler.dispatchMessage(Unknown Source:19)
	at android.os.Looper.loop(Unknown Source:242)
	at android.app.ActivityThread.main(Unknown Source:98)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(Unknown Source:11)
	at com.android.internal.os.ZygoteInit.main(Unknown Source:275)

2 plugin(s) enabled.
mirai-console started successfully.
工作目录: /storage/emulated/0/Android/data/io.github.mzdluo123.mirai.android/files
lua-mirai 加载成功，当前版本：2.0.8

复现

复现项目：https://github.com/Itsusinn/buuuuuug

[溯洄]

问题本身是由于D8在执行dexing的时候（因为minSDK是21）会把interface default method放到companion class里面，也就是registerCommand$default在dex中的定义是在CommandManager$-CC中而不是CommandManager中。理论上我认为插件编译的时候也应该自动转换为CommandManager$-CC但是不知道为什么实际上没这样。

暂时没想到很好的解决方法。

Workaround: 不使用默认参数，使用registerCommand(Commmand,Boolean)

[RainChan]

问题本身是由于D8在执行dexing的时候（因为minSDK是21）会把interface default method放到companion class里面，也就是registerCommand$default在dex中的定义是在CommandManager$-CC中而不是CommandManager中。理论上我认为插件编译的时候也应该自动转换为CommandManager$-CC但是不知道为什么实际上没这样。

暂时没想到很好的解决方法。

Workaround: 不使用默认参数，使用registerCommand(Commmand,Boolean)

看起来还是一个为了兼容旧版本引入的问题，如果能够单独启用一个兼容旧版系统的分支是不是会好一些