在我的 Minecraft 服务器上，我的插件没有加载

Question

我的 Minecraft 插件无法加载

我尝试重新安装 Java 重建罐子并尝试重新编写代码我用了 java 11 在 IntelliJ Idea 中我用的是 Minecraft 1.15.2 在 MacOS 10.15.7 上我用 Kotlin

编码

错误信息：

org.bukkit.plugin.InvalidPluginException: Abnormal plugin type
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:80) ~[spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:394) ~[spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:301) [spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    at org.bukkit.craftbukkit.v1_15_R1.CraftServer.loadPlugins(CraftServer.java:353) [spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:210) [spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:784) [spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.lang.InstantiationException
    at jdk.internal.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48) ~[?:?]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:490) ~[?:?]
    at java.lang.Class.newInstance(Class.java:584) ~[?:?]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:76) ~[spigot-1.15.2.jar:git-Spigot-a99063f-be6aaf0]
    ... 7 more

My Main Class 项目唯一的 Class（在 Kotlin 中）：

package main

import org.bukkit.Bukkit
import org.bukkit.command.Command
import org.bukkit.command.CommandExecutor
import org.bukkit.command.CommandSender
import org.bukkit.entity.Entity
import org.bukkit.entity.Player
import org.bukkit.event.EventHandler
import org.bukkit.event.Listener
import org.bukkit.event.player.PlayerJoinEvent
import org.bukkit.inventory.PlayerInventory
import org.bukkit.plugin.PluginManager

import org.bukkit.plugin.java.JavaPlugin


public abstract class Loader : JavaPlugin(), Listener, CommandExecutor{




    override fun onEnable() {
        Bukkit.broadcastMessage("Aura Plugin test by Woody1474747")
    }

    override fun onCommand(sender: CommandSender, command: Command, label: String, args: Array<out String>): Boolean {
        if(sender is Player){
            when(command.name){
                "aura" -> {
                    val plinv:PlayerInventory = sender.getInventory()

                    val item1 = plinv.getItem(0)
                    val item8 = plinv.getItem(8)
                    sender.sendMessage(item1.toString())

                }
            }
        }
        return true
    }
}

我的plugin.yml

name: auraplugtest
version: 1.0.0
description: fsaf
main: main.Loader

commands:
  aura:
    usage: /<command>

我的build.gradle:

    id 'java'
    id 'org.jetbrains.kotlin.jvm' version '1.3.61'
    id 'com.github.johnrengelman.shadow' version '2.0.4'
}

group 'org.example'
version '1-SNAPSHOT'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

repositories {
    maven {
        url = 'https://hub.spigotmc.org/nexus/content/repositories/snapshots/'

        content {
            includeGroup 'org.bukkit'
            includeGroup 'org.spigotmc'
        }
    }
    maven {
        url = 'https://oss.sonatype.org/content/repositories/snapshots'
    }
}

dependencies {
    compileOnly 'org.bukkit:bukkit:1.14.4-R0.1-SNAPSHOT'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
    testCompile group: 'junit', name: 'junit', version: '4.12'
}

sourceCompatibility = 1.8
targetCompatibility = 1.8


compileKotlin {
    kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
    kotlinOptions.jvmTarget = "1.8"
}

Answer 1

答案很简单，你的class不可能是abstract！固定码：

// removed abstract keyword
public class Loader : JavaPlugin(), Listener, CommandExecutor {
 // ...
}

在我的 Minecraft 服务器上，我的插件没有加载

On my Minecraftserver my Plugin doesn't load

java

gradle

minecraft

bukkit

kotlin