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https://issues.apache.org/jira/browse/WICKET-6454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16152932#comment-16152932
]
Martin Grigorov commented on WICKET-6454:
-----------------------------------------
[~hschneider] Since you use Wicket 7.x then you must be using Servlet 3.0
implementation (sorry but I am too lazy to search which version of the servlet
spec JBoss 7.1 supports). So you can just update your web.xml to use 3.0 XSD
instead and you won't have this problem.
> WicketApplication behind a proxy with restrictive internet access can not
> initialized
> -------------------------------------------------------------------------------------
>
> Key: WICKET-6454
> URL: https://issues.apache.org/jira/browse/WICKET-6454
> Project: Wicket
> Issue Type: Improvement
> Components: wicket
> Affects Versions: 7.6.0
> Environment: WicketApplication behind a proxy with restrictive
> internet access
> Reporter: Hans Schneider
> Assignee: Martin Grigorov
>
> I have a Application with a Wicket frontend developed and on my developer
> workstation with internet access starts the application successul. In a
> production server with restricte internet access the application can not
> start because the following exception.
> {code}
> ERROR org.apache.wicket.util.file.WebXmlFile getFilterPath Error reading
> servlet/filter path from web.xml
> java.net.UnknownHostException: java.sun.com
> at
> java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)
> ~[na:1.7.0_79]
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
> ~[na:1.7.0_79]
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
> ~[na:1.7.0_79]
> at java.net.Socket.connect(Socket.java:579) ~[na:1.7.0_79]
> at java.net.Socket.connect(Socket.java:528) ~[na:1.7.0_79]
> at sun.net.NetworkClient.doConnect(NetworkClient.java:180) ~[na:na]
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) ~[na:na]
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) ~[na:na]
> at sun.net.www.http.HttpClient.<init>(HttpClient.java:211) ~[na:na]
> at sun.net.www.http.HttpClient.New(HttpClient.java:308) ~[na:na]
> at sun.net.www.http.HttpClient.New(HttpClient.java:326) ~[na:na]
> at
> sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:997)
> ~[na:na]
> at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:933)
> ~[na:na]
> at
> sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:851)
> ~[na:na]
> at
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1301)
> ~[na:na]
> at
> org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:986)
> ~[na:na]
> at
> org.apache.xerces.impl.XMLEntityManager.startEntity(XMLEntityManager.java:897)
> ~[na:na]
> at
> org.apache.xerces.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:864)
> ~[na:na]
> at
> org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:241)
> ~[na:na]
> at
> org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(XMLDocumentScannerImpl.java:1001)
> ~[na:na]
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
> ~[na:na]
> at
> org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:845)
> ~[na:na]
> at
> org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:768)
> ~[na:na]
> at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
> ~[na:na]
> at org.apache.xerces.parsers.DOMParser.parse(DOMParser.java:230)
> ~[na:na]
> at
> org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:285)
> ~[na:na]
> at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121)
> ~[na:1.7.0_79]
> at
> org.apache.wicket.util.file.WebXmlFile.getFilterPath(WebXmlFile.java:206)
> [wicket-util-7.6.0.jar:7.6.0]
> at
> org.apache.wicket.util.file.WebXmlFile.getFilterPath(WebXmlFile.java:88)
> [wicket-util-7.6.0.jar:7.6.0]
> at
> org.apache.wicket.util.file.WebXmlFile.getUniqueFilterPath(WebXmlFile.java:67)
> [wicket-util-7.6.0.jar:7.6.0]
> {code}
> Would not it be a good idea if there was a possibility in the future to
> disable the validation of the XML?
> I have found a link on how the improvement could be implemented in the Class
> org.apache.wicket.util.file.WebXmlFile and Method
> {code}
> public final Set<String> getFilterPath(final boolean isServlet, final String
> filterName,
> final InputStream is) throws ParserConfigurationException,
> SAXException, IOException
> {code}
> https://stackoverflow.com/questions/4002885/unknown-host-exception-while-parsing-an-xml-file
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