Kotlin + Spigot 1.8.8 + Minecraft dev IntelliJ Plugin

build.gradle

plugins {
    id 'java'
    id 'org.jetbrains.kotlin.jvm' version '1.3.20'
    id 'com.github.johnrengelman.shadow' version '4.0.3'
}

group = pluginGroup
version = pluginVersion

sourceCompatibility = 1.8

repositories {
    jcenter()
    maven {
        name = "spigot"
        url = uri("https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
    }
    maven {
        name = "sonatype"
        url = uri("https://oss.sonatype.org/content/repositories/snapshots/")
    }
}

dependencies {
    compile("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
    
    compileOnly("org.spigotmc:spigot-api:1.8.8-R0.1-SNAPSHOT")
}

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

import org.apache.tools.ant.filters.ReplaceTokens

processResources {
    from(sourceSets.main.resources.srcDirs) {
        filter ReplaceTokens, tokens: [version: version]
    }
}