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java.net.UnknownHostException : java.sun.com

 
Greenhorn
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I have an application running on a websphere 3.5.4 and when i start it up
i get this exception:
resolveEntity('-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN', 'http://java.sun.com/j2ee/dtds/web-app_2_2.dtd')
Not registered, use system identifier
Parse Fatal Error at line 5 column -1: External entity not found: "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd".
java.net.UnknownHostException: java.sun.com
at org.xml.sax.SAXException.<init> (SAXException.java:78)
at org.xml.sax.SAXParseException. <init>(SAXParseException.java:78)
at com.sun.xml.parser.Parser.fatal (Parser.java:2817)
at com.sun.xml.parser.Parser. externalParameterEntity(Parser.java(Compiled Code))
at com.sun.xml.parser.Parser. maybeDoctypeDecl(Parser.java:1137)
at com.sun.xml.parser.Parser. parseInternal(Parser.java:481)
at com.sun.xml.parser.Parser. parse(Parser.java:284)
at javax.xml.parsers.SAXParser .parse(SAXParser.java:155)
at javax.xml.parsers.SAXParser .parse(SAXParser.java:77)
at org.apache.struts.digester. Digester.parse(Digester.java:755)
at org.apache.struts.action. ActionServlet.initServlet(ActionServlet.java:1433)
at org.apache.struts.action. ActionServlet.init(ActionServlet.java:473)
at javax.servlet.GenericServlet. init(GenericServlet.java:258)
at com.ibm.servlet.engine.webapp. StrictServletInstance.doInit(ServletManager.java:604)
at com.ibm.servlet.engine.webapp. StrictLifecycleServlet._init(StrictLifecycleServlet.java:136)
at com.ibm.servlet.engine.webapp. PreInitializedServletState.init(StrictLifecycleServlet.java:244)
at com.ibm.servlet.engine.webapp. StrictLifecycleServlet.init(StrictLifecycleServlet.java:102)
at com.ibm.servlet.engine.webapp. ServletInstance.init(ServletManager.java:284)
at javax.servlet.GenericServlet. init(GenericServlet.java:258)
at com.ibm.servlet.engine.webapp. ServletManager.addServlet(ServletManager.java:76)
at com.ibm.servlet.engine.webapp. WebAppServletManager.loadServlet(WebAppServletManager.java:91)
at com.ibm.servlet.engine.webapp. WebAppServletManager.getServletReference (WebAppServletManager.java:135)
at com.ibm.servlet.engine.webapp. WebApp.getServletReference(WebApp.java:293)
at com.ibm.servlet.engine.webapp. WebAppRequestDispatcherInfo. calculateInfo( WebAppRequestDispatcherInfo.java:151)
at com.ibm.servlet.engine.webapp. WebAppRequestDispatcherInfo.<init>(WebAppRequestDispatcherInfo.java:50)
at com.ibm.servlet.engine.webapp. WebApp.getRequestDispatcher(WebApp.java:962)
at dk.lec.nice. servlet.NiceWebServletDispatcher. gotoPage(Trace.java(1k):305)
at dk.lec.nice.servlet. NiceWebServletDispatcher.handleDoPost$ ajcPostCall(Trace.java(1k):151)
at dk.lec.nice.servlet. NiceWebServletDispatcher.handleDoPost(Trace.java(1k):1163)
at dk.lec.nice.servlet. NiceWebServletDispatcher.handleDoPost $method_call(Trace.java(1k))
at dk.lec.nice.servlet.NiceWebServletDispatcher .doPost(Trace.java(1k):24)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.servlet.engine.webapp.StrictServletInstance.doService(ServletManager.java:626)
at com.ibm.servlet.engine.webapp. StrictLifecycleServlet._service(StrictLifecycleServlet.java:160)
at com.ibm.servlet.engine.webapp. IdleServletState.service(StrictLifecycleServlet.java:287)
at com.ibm.servlet.engine.webapp. StrictLifecycleServlet.service(StrictLifecycleServlet.java:105)
at com.ibm.servlet.engine.webapp. ServletInstance.service(ServletManager.java:360)
at com.ibm.servlet.engine.webapp. ValidServletReferenceState.dispatch (ServletManager.java:775)
at com.ibm.servlet.engine.webapp. ServletInstanceReference.dispatch(ServletManager.java:701)
at com.ibm.servlet.engine.webapp. WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:478)
at com.ibm.servlet.engine.webapp. WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:234)
at com.ibm.servlet.engine.webapp. WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:138)
at com.ibm.servlet.engine.srt. WebAppInvoker.handleInvocationHook(WebAppInvoker.java:77)
at com.ibm.servlet.engine.invocation. CachedInvocation.handleInvocation (CachedInvocation.java:67)
at com.ibm.servlet.engine.invocation. CacheableInvocationContext.invoke (CacheableInvocationContext.java:106)
at com.ibm.servlet.engine.srp .ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:160)
at com.ibm.servlet.engine.oselistener .OSEListenerDispatcher.service(OSEListener.java:300)
at com.ibm.servlet.engine.oselistener. SQEventListenerImp$ServiceRunnable. run(SQEventListenerImp.java:230)
at com.ibm.servlet.engine.oselistener. SQEventListenerImp.notifySQEvent (SQEventListenerImp.java:104)
at com.ibm.servlet.engine.oselistener .serverqueue.SQEventSource.notifyEvent(SQEventSource.java:212)
at com.ibm.servlet.engine.oselistener. serverqueue.SQWrapperEventSource$ SelectRunnable.notifyService(SQWrapperEventSource.java:353)
at com.ibm.servlet.engine.oselistener. serverqueue.SQWrapperEventSource $SelectRunnable.run(SQWrapperEventSource.java:220)
at com.ibm.servlet.engine.oselistener .outofproc.OutOfProcThread$ CtlRunnable.run(OutOfProcThread.java:248)
at java.lang.Thread.run(Thread.java:481)
[03.07.24 09:01:38:031 GMT+02:00] e5967865 WebGroup A SRVE0092I: [Servlet LOG]: "action: null": java.net.UnknownHostException: java.sun.com
at org.xml.sax.SAXException. <init>(SAXException.java:78)
at org.xml.sax.SAXParseException. <init>(SAXParseException.java:78)
at com.sun.xml.parser.Parser.fatal(Parser.java:2817)
at com.sun.xml.parser.Parser. externalParameterEntity(Parser.java(Compiled Code))
at com.sun.xml.parser.Parser. maybeDoctypeDecl(Parser.java:1137)
at com.sun.xml.parser.Parser. parseInternal(Parser.java:481)
at com.sun.xml.parser.Parser. parse(Parser.java:284)
at javax.xml.parsers. SAXParser.parse(SAXParser.java:155)
at javax.xml.parsers. SAXParser.parse(SAXParser.java:77)
at org.apache.struts. digester.Digester.parse(Digester.java:755)
at org.apache.struts. action.ActionServlet.initServlet(ActionServlet.java:1433)
at org.apache.struts. action.ActionServlet.init(ActionServlet.java:473)
at javax.servlet.GenericServlet. init(GenericServlet.java:258)
at com.ibm.servlet.engine.webapp. StrictServletInstance.doInit(ServletManager.java:604)
the line:
'-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN', 'http://java.sun.com/j2ee/dtds/web-app_2_2.dtd'
is from the web.xml file
Does anyone have a suggestion to what is going on ??
 
Greenhorn
Posts: 6
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ur internet connection must be available
 
Ranch Hand
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I had similar problem with new weblogic 8.1 installation on new Windows 2003 box. Unfortunately my network card was not supported by the new windows and hence i could never connect to internet. If you are connected to internet once, your computer hostname to internet address mapping is saved somewhere in the cache and weblogic server does not throw the host exception.
I resolved this issue by adding the following line in the hosts file.
<computer name> 127.0.0.1.
Hope it will help you resolve the issue.
 
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