Exception in thread "main" javax.xml.ws.WebServiceException

Exception in thread "main" javax.xml.ws.WebServiceException: Failed to access the WSDL at: http://localhost:8080/SOAPWebservice/HelloWorldPort?wsdl. It failed with: 
Connection refused: connect.
at com.sun.xml.ws.wsdl.parser.RuntimeWSDLParser.tryWithMex(RuntimeWSDLParser.java:162)
at com.sun.xml.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:144)
at com.sun.xml.ws.client.WSServiceDelegate.parseWSDL(WSServiceDelegate.java:263)
at com.sun.xml.ws.client.WSServiceDelegate.(WSServiceDelegate.java:226)
at com.sun.xml.ws.client.WSServiceDelegate.(WSServiceDelegate.java:174)
at com.sun.xml.ws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:104)
at javax.xml.ws.Service.(Service.java:56)
at com.hewitt.ws.HelloWorldImplService.(HelloWorldImplService.java:55)
at com.hewitt.ws.TestClient.main(TestClient.java:7)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at sun.net.NetworkClient.doConnect(NetworkClient.java:163)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
at sun.net.www.http.HttpClient.(HttpClient.java:233)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.http.HttpClient.New(HttpClient.java:323)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:852)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:793)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:718)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1041)
at java.net.URL.openStream(URL.java:1009)
at com.sun.xml.ws.wsdl.parser.RuntimeWSDLParser.createReader(RuntimeWSDLParser.java:805)
at com.sun.xml.ws.wsdl.parser.RuntimeWSDLParser.resolveWSDL(RuntimeWSDLParser.java:262)
at com.sun.xml.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:129)
... 7 more

If you get above error, please check if the wsdl url is working fine. Just hit the URL in a browser and see if you get response. If not check with your service provider.

Example -
http://localhost:8080/SOAPWebservice/HelloWorldPort?wsdl