Scalaですらｗ

ScalaDemoPlugin_build.gradle

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'scala'

sourceCompatibility = 1.8
targetCompatibility = 1.8
[compileJava, compileTestJava].each {
    it.options.encoding = 'UTF-8'
}

configurations { providedCompile }

sourceSets.main.compileClasspath += configurations.providedCompile
sourceSets.test.compileClasspath += configurations.providedCompile
sourceSets.test.runtimeClasspath += configurations.providedCompile


jar {
    baseName = 'ScalaDemoPlugin'
    version = '1.0.0'

    manifest {
        attributes 'Plugin-ID': 'net.orekyuu.demo.scala'
        attributes 'Plugin-Name': 'ScalaDemoPlugin'
        attributes 'Author': 'orekyuu'
        attributes 'Author-Web': ''
        attributes 'Plugin-Version': '1.0.0'
        attributes 'Min-API-Version': '1.0.1'
        attributes 'Plugin-Class': 'net.orekyuu.demo.scala.ScalaDemo'
    }
    
    from {
        configurations.compile.collect {
            it.isDirectory() ? it : zipTree(it)
        }
    }
}

repositories {
    mavenCentral()
    maven {
        url = 'http://repos.orekyuu.net/'
    }
}

dependencies {
    providedCompile 'net.orekyuu:JavaBeamStudioAPI:1.0.1'
    compile 'org.scala-lang:scala-library:2.11.1'
    
}

ScalaDemoPlugin_src_main_scala_net_orekyuu_demo_scala_ScalaCommand.scala

package net.orekyuu.demo.scala

import java.util
import java.util.function.Consumer

import net.orekyuu.javatter.api.command.Command
import net.orekyuu.javatter.api.service.TwitterUserService
import net.orekyuu.javatter.api.twitter.{TweetBuilder, TwitterUser}
import net.orekyuu.javatter.api.util.lookup.Lookup

class ScalaCommand extends Command {

  override def command(): String = "scala"

  override def exec(args: util.List[String]): Unit = {
    val service: TwitterUserService = Lookup.lookup(classOf[TwitterUserService])
    service.selectedAccount().ifPresent(new Consumer[TwitterUser] {
      override def accept(user: TwitterUser): Unit = {
        val builder: TweetBuilder = user.createTweet()
        builder.setAsync().setText("Scalaですからｗ").tweet()
      }
    })
  }

  override def help(): String = "Scalaですからｗ"
}

ScalaDemoPlugin_src_main_scala_net_orekyuu_demo_scala_ScalaDemo.scala

package net.orekyuu.demo.scala

import javax.inject.Inject

import net.orekyuu.javatter.api.command.CommandManager
import net.orekyuu.javatter.api.plugin.{OnInit, OnPostInit}

class ScalaDemo {

  @Inject
  var commandManager: CommandManager = _

  @OnInit
  def init(): Unit = {
    commandManager.registerCommand(new ScalaCommand)
  }
}