title: Spring boot starting error
body: <p>Am getting the below error while starting my spring-boot application . This is my first spring-boot project. so, am not sure about the error and how to fix it.</p>
  
  <hr>
  
  <p>APPLICATION FAILED TO START</p>
  
  <hr>
  
  <p>Description:</p>
  
  <p>The Tomcat connector configured to listen on port 8080 failed to start. The port may already be in use or the connector may be misconfigured.</p>
  
  <p>Action:</p>
  
  <p>Verify the connector's configuration, identify and stop any process that's listening on port 8080, or configure this application to listen on another port.</p>
  
  <pre><code>2018-04-28 21:42:16.248  INFO 13196 --- [lication.main()] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@57ac5b74: startup date [Sat Apr 28 21:42:11 IST 2018]; root of context hierarchy
  2018-04-28 21:42:16.249  INFO 13196 --- [lication.main()] o.s.j.e.a.AnnotationMBeanExporter        : Unregistering JMX-exposed beans on shutdown
  [WARNING] 
  java.lang.reflect.InvocationTargetException
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
  at org.springframework.boot.maven.RunMojo$LaunchRunner.run(RunMojo.java:423)
  at java.lang.Thread.run(Thread.java:748)
  Caused by: org.springframework.boot.context.embedded.tomcat.ConnectorStartFailedException: Connector configured to listen on port 8080 failed to start
  at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.checkThatConnectorsHaveStarted(TomcatEmbeddedServletContainer.java:222)
  at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:198)
  at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:297)
  at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:145)
  at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
  at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
  at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
  at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
  at com.journaldev.elasticsearch.Elastic6Application.main(Elastic6Application.java:12)
  ... 6 more
  </code></pre>