JSF deployment hangs in web.xml schema validation on EAP 7

Issue

• We have a JSF deployment that hangs when starting and always times out. Thread dumps show that JSF is attempting to validate some schema for the web.xml and a resulting connection attempt is hanging:

"ServerService Thread Pool -- 128" #221 prio=5 os_prio=0 tid=0x00000000061b2800 nid=0x6ecd runnable [0x00007f0b786bf000]
   java.lang.Thread.State: RUNNABLE
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    - locked <0x00000000e7e3d048> (a java.net.SocksSocketImpl)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:607)
    at java.net.Socket.connect(Socket.java:556)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    - locked <0x00000000e7e3cfc0> (a sun.net.www.http.HttpClient)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1226)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1162)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1056)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:990)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1570)
    - locked <0x00000000e7e3c560> (a sun.net.www.protocol.http.HttpURLConnection)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
    - locked <0x00000000e7e3c560> (a sun.net.www.protocol.http.HttpURLConnection)
    at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:1033)
    at org.apache.xerces.impl.XMLEntityManager.startEntity(XMLEntityManager.java:941)
    at org.apache.xerces.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:908)
    at org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:241)
    at org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(XMLDocumentScannerImpl.java:1001)
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
    at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:875)
    at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:798)
    at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
    at org.apache.xerces.parsers.DOMParser.parse(DOMParser.java:230)
    at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:298)
    at org.apache.xpath.jaxp.XPathImpl.evaluate(XPathImpl.java:474)
    at org.apache.xpath.jaxp.XPathImpl.evaluate(XPathImpl.java:521)
    at com.sun.faces.util.Util.getWebXmlVersion(Util.java:1361)
    at com.sun.faces.el.ELUtils.tryAddCDIELResolver(ELUtils.java:311)
    at com.sun.faces.el.ELUtils.buildFacesResolver(ELUtils.java:242)
    at com.sun.faces.application.ApplicationAssociate.initializeELResolverChains(ApplicationAssociate.java:503)
    at com.sun.faces.application.ApplicationImpl.performOneTimeELInitialization(ApplicationImpl.java:1405)
    at com.sun.faces.application.ApplicationImpl.getELResolver(ApplicationImpl.java:529)
    at javax.faces.application.ApplicationWrapper.getELResolver(ApplicationWrapper.java:621)
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:256)