Problem reported and fix provided by Kubota Yuji: Publishing two services: Endpoint endPoint1 = Endpoint.publish("http://0.0.0.0:8081/method1", new Method1()); Endpoint endPoint2 = Endpoint.publish("http://0.0.0.0:8081/method2", new Method2()); ends with exception: Exception in thread "main" com.sun.xml.internal.ws.server.ServerRtException: Server Runtime Error: java.net.BindException: Address already in use at com.sun.xml.internal.ws.transport.http.server.ServerMgr.createContext(ServerMgr.java:117) at com.sun.xml.internal.ws.transport.http.server.HttpEndpoint.publish(HttpEndpoint.java:64) at com.sun.xml.internal.ws.transport.http.server.EndpointImpl.publish(EndpointImpl.java:232) at com.sun.xml.internal.ws.spi.ProviderImpl.createAndPublishEndpoint(ProviderImpl.java:126) at javax.xml.ws.Endpoint.publish(Endpoint.java:240) at wstest.WSTest.main(WSTest.java:27) Caused by: java.net.BindException: Address already in use at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:432) at sun.nio.ch.Net.bind(Net.java:424) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) at sun.net.httpserver.ServerImpl.<init>(ServerImpl.java:102) at sun.net.httpserver.HttpServerImpl.<init>(HttpServerImpl.java:50) at sun.net.httpserver.DefaultHttpServerProvider.createHttpServer(DefaultHttpServerProvider.java:35) at com.sun.net.httpserver.HttpServer.create(HttpServer.java:130) at com.sun.xml.internal.ws.transport.http.server.ServerMgr.createContext(ServerMgr.java:86) ... 5 more see http://mail.openjdk.java.net/pipermail/core-libs-dev/2015-December/037067.html for more details.