Spring Boot your Hello World app will not "start"

**Your Spring Boot application has no errors, but won't start (listen on port 8080).**

You see the following output:

. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.3.3.RELEASE)

Process finished with exit code 0

You need to add the following dependency to your Maven, or Gradle configuration file:

+ Maven (pom.xml):

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
</dependency>

+ Gradle (build.gradle):

compile("org.springframework.boot:spring-boot-starter-web")

Once this dependency has been added, you application will start. 

Look out for Tomcat started on port(s): 8080 (http)