Fix failed resource lookup when offline

Failed

org.jboss.test.ws.jaxws.samples.wseventing.SysmonTestCase.testSubscribe

Caused by: java.net.UnknownHostException: www.w3.org
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
at java.net.Socket.connect(Socket.java:516)
at java.net.Socket.connect(Socket.java:466)
at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:365)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:477)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:214)
at sun.net.www.http.HttpClient.New(HttpClient.java:287)
at sun.net.www.http.HttpClient.New(HttpClient.java:299)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:796)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:748)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:673)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:917)
at java.net.URL.openStream(URL.java:1007)
at org.jboss.ws.core.utils.ResourceURL.openStream(ResourceURL.java:57)
at org.jboss.ws.tools.JavaToXSD.parseSchema(JavaToXSD.java:175)

Standard Error