Ao clicar em Run As no console exibe o seguinte log contendo um erro, do que se trata esse erro ?
Nov 13, 2015 2:31:36 PM org.glassfish.jersey.server.ApplicationHandler initialize INFORMAÇÕES: Initiating Jersey application, version Jersey: 2.5 2013-12-18 14:27:29... Exception in thread "main" javax.ws.rs.ProcessingException: IOException thrown when trying to start grizzly server at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory.createHttpServer(GrizzlyHttpServerFactory.java:276) at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory.createHttpServer(GrizzlyHttpServerFactory.java:110) at br.com.alura.loja.Servidor.main(Servidor.java:15) Caused by: java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Unknown Source) at sun.nio.ch.Net.bind(Unknown Source) at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source) at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source) at org.glassfish.grizzly.nio.transport.TCPNIOBindingHandler.bindToChannelAndAddress(TCPNIOBindingHandler.java:131) at org.glassfish.grizzly.nio.transport.TCPNIOBindingHandler.bind(TCPNIOBindingHandler.java:87) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.bind(TCPNIOTransport.java:449) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.bind(TCPNIOTransport.java:429) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.bind(TCPNIOTransport.java:420) at org.glassfish.grizzly.http.server.NetworkListener.start(NetworkListener.java:658) at org.glassfish.grizzly.http.server.HttpServer.start(HttpServer.java:264) at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory.createHttpServer(GrizzlyHttpServerFactory.java:274) ... 2 more