title: Error message while starting JBoss server:Port 9303 already in use
body: <p>I am getting below error message  while starting my Jboss 1.5 server. Kindly help me out with suggestions to fix this issue.</p>
  
  <p>The Jboss servers stays up for matter of minutes and immediately it stops working with the below error message.</p>
  
  <p>Kindly help.</p>
  
  <pre><code>2015-11-21 07:06:12,922 INFO  [org.jboss.web.WebService] (main) Using RMI server codebase: http://jboss URL:9303/
  2015-11-21 07:06:12,982 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=jboss:service=WebService state=Create mode=Manual requiredState=Installed
  java.lang.Exception: Port 9303 already in use.
    at org.jboss.web.WebServer.start(WebServer.java:233)
    at org.jboss.web.WebService.startService(WebService.java:322)
    at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:376)
    at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:322)
  </code></pre>