Spring MVC on Heroku

https://devcenter.heroku.com/articles/getting-started-with-java
https://devcenter.heroku.com/articles/getting-started-with-spring-mvc-hibernate#declare-process-types-with-procfile

1. pom.xml : add plugin
  <!-- for heroku -->
  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-dependency-plugin</artifactId>
    <version>2.3</version>
    <executions>
      <execution>
        <phase>package</phase>
        <goals>
          <goal>copy</goal>
        </goals>
        <configuration>
          <artifactItems>
            <artifactItem>
              <groupId>org.mortbay.jetty</groupId>
              <artifactId>jetty-runner</artifactId>
              <version>7.4.5.v20110725</version>
              <destFileName>jetty-runner.jar</destFileName>
            </artifactItem>
          </artifactItems>
        </configuration>
      </execution>
    </executions>
  </plugin>

2. Procfile / system.properties
  A Procfile is a text file named Procfile placed in the root of your application.
  - Procfile
    web: java $JAVA_OPTS -jar target/dependency/jetty-runner.jar --port $PORT target/*.war
  - system.properties
    java.runtime.version=1.7

3. build
  - in command window
    mvn clean
    mvn package
  - or in eclipse
    run as maven build ..
      goal : -e clean package

4. run
  java -jar target/dependency/jetty-runner.jar target/*.war

  ex) C:\Users\doohee\git\tz.sheepshare>java -jar target/dependency/jetty-runner.jar

5. heroku login
  Enter your Heroku credentials.
  Email: adam@example.com
  Password:
  Could not find an existing public key.
  Would you like to generate one? [Yn]
  Generating new SSH public key.
  Uploading ssh public key C:/Users/doohee/.ssh/id_rsa.pub... done

6. git
  C:\Users\doohee\git\tz.sheepshare>
  git init
  heroku create
  git remote -v
  git add .
  git commit -m "Ready to deploy"
  git push heroku master

heroku restart still-bayou-6041
heroku logs

2013-12-04T02:06:01.758486+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 6
0 seconds of launch

=> ????