"java.net.BindException: Address already in use" JBoss EAP

Issue

• Following message is seen in the server log files

  java.lang.Exception: Port NNNN already in use.
          ...Caused by: java.net.BindException: Address already in use
          at java.net.PlainSocketImpl.socketBind(Native Method)
          at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:365)
          at java.net.ServerSocket.bind(ServerSocket.java:319)
          at java.net.ServerSocket.<init>(ServerSocket.java:185)
          ...
  

• Server won't starup, but shows this on the console

  ERROR: transport error 202: bind failed: Address already in use
  

• Below ERROR is shown in logs :

  18:09:02,035 ERROR [org.apache.coyote.http11.Http11Protocol] (MSC service thread1-4) JBWEB003043: Error initializing endpoint: java.net.BindException: Address already in use: JVM_Bind /0.0.0.0:80
          at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:979) [jbossweb-7.4.8.Final-redhat-4.jar:7.4.8.Final-redhat-4]
          at org.apache.coyote.http11.Http11Protocol.init(Http11Protocol.java:174) [jbossweb-7.4.8.Final-redhat-4.jar:7.4.8.Final-redhat-4]
          at org.apache.catalina.connector.Connector.init(Connector.java:985) [jbossweb-7.4.8.Final-redhat-4.jar:7.4.8.Final-redhat-4]
          at org.jboss.as.web.WebConnectorService.start(WebConnectorService.java:318) [jboss-as-web-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
          at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1980) [jboss-msc-1.1.5.Final-redhat-1.jar:1.1.5.Final-redhat-1]
          at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1913) [jboss-msc-1.1.5.Final-redhat-1.jar:1.1.5.Final-redhat-1]
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_80]
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_80]
          at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_80]
  
  18:09:02,457 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC000001: Failed to start service jboss.web.connector.http: org.jboss.msc.service.StartException in service jboss.web.connector.http: JBAS018007: Error starting web connector
  

• The below stack trace is shown in server.log if the APR native connector is enabled on EAP5:

java.lang.Exception: Socket bind failed: [98] Address already in use
        at org.apache.tomcat.util.net.AprEndpoint.init(AprEndpoint.java:610)
        at org.apache.coyote.http11.Http11AprProtocol.init(Http11AprProtocol.java:106)
        at org.apache.catalina.connector.Connector.initialize(Connector.java:1029)
        at org.apache.catalina.core.StandardService.initialize(StandardService.java:683)
        at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:821)
        at org.jboss.web.tomcat.service.deployers.TomcatService.startService(TomcatService.java:313)