アレクサのスキルをジャバで作ってみたので備忘録を残しておきます。
環境はAWSのCloud9を使っています。

[Cloud9]
１）
sudo yum -y update

sudo yum -y install java-1.8.0-openjdk-devel

sudo update-alternatives --config javac

javac -version

mvn -version

//repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo

sudo sed -i s/\$releasever/6/g /etc/yum.repos.d/epel-apache-maven.repo
sudo yum install -y apache-maven```

7)
```mvn -version```

8)赤字は変更する
```mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false```

*-DgroupId={group-id}
*-DartifactId={project-name}

e.g)上記の場合、
"my-app
  |- src
  |   `- main
  |        `- java
  |             `- com
  |                 `- mycompany
  |                      `- app
  |                          `-App.java
  |- test
  |   `- java
  |        `- com
  |            `- mycompany
  |                 `- app
  |                     `- AppTest.java
  `- pom.xml"


■アレクサ用pom.xml
"<project xmlns=""http://maven.apache.org/POM/4.0.0"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance""
  xsi:schemaLocation=""http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"">
  <modelVersion>4.0.0</modelVersion>
  <groupId>alexa-skills-kit-samples</groupId>
  <artifactId>colorpicker</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <name>colorpicker</name>
  <url>http://developer.amazon.com/ask</url>
  <licenses>
    <license>
      <name>The Apache License, Version 2.0</name>
      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
    </license>
  </licenses>
  <developers>
    <developer>
      <name>Alexa Skills Kit</name>
      <email>ask-sdk-java@amazon.com</email>
      <organization>Alexa</organization>
      <organizationUrl>http://developer.amazon.com/ask</organizationUrl>
    </developer>
  </developers>
  <scm>
    <connection>scm:git:https://github.com/amzn/alexa-skills-kit-java.git</connection>
    <developerConnection>scm:git:https://github.com/amzn/alexa-skills-kit-java.git</developerConnection>
    <url>https://github.com/amzn/alexa-skills-kit-java.git</url>
  </scm>

  <dependencies>
    <dependency>
      <groupId>com.amazon.alexa</groupId>
      <artifactId>ask-sdk</artifactId>
      <version>2.12.0</version>
    </dependency>
  </dependencies>

  <build>
    <sourceDirectory>src</sourceDirectory>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
          <configuration>
            <source>1.8</source>
            <target>1.8</target>
            <forceJavacCompilerUse>true</forceJavacCompilerUse>
          </configuration>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
  
</project>
"

9)下記マニュアルに沿って作成
https://alexa-skills-kit-sdk-for-java.readthedocs.io/ja/latest/Developing-Your-First-Skill.html

```mvn org.apache.maven.plugins:maven-assembly-plugin:2.6:assembly -DdescriptorId=jar-with-dependencies package```

10)tarファイルをラムダへアップロード
「with-dependencies」のファイル

11）関数コードのハンドラーに以下を入れる
```com.amazon.ask.onseisuijaku.OnseiSuijakuStreamHandler```

完了