Hi,
I'm trying to develop a Struts application on my laptop which spends
quite a lot of it's time without net access. This should not cause any
problems because the app it self has no need to access the net at all
but it is. The problem occours when I try to start Tomcat while not
connected to the network. When I do that the Struts Validator throws an
exception while Tomcat is starting. If I connect to the net the app
start fine. The stack trace is as follows:
INFO: Processing Context configuration file URL
file:/usr/local/jakarta-tomcat-5.0.28/conf/Catalina/localhost/vtie_live.xml
Jan 19, 2006 11:41:21 PM org.apache.struts.validator.ValidatorPlugIn
initResources
INFO: Loading validation rules file from '/WEB-INF/validator-rules.xml'
Jan 19, 2006 11:41:21 PM org.apache.struts.validator.ValidatorPlugIn
initResources
INFO: Loading validation rules file from '/WEB-INF/validation.xml'
Jan 19, 2006 11:41:22 PM org.apache.struts.validator.ValidatorPlugIn init
SEVERE: jakarta.apache.org
java.net.UnknownHostException: jakarta.apache.org
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:153)
at java.net.Socket.connect(Socket.java:452)
at java.net.Socket.connect(Socket.java:402)
at sun.net.NetworkClient.doConnect(NetworkClient.java:139)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:402)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:618)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:306)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:267)
at sun.net.www.http.HttpClient.New(HttpClient.java:339)
at sun.net.www.http.HttpClient.New(HttpClient.java:320)
at sun.net.www.http.HttpClient.New(HttpClient.java:315)
at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:521)
at
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:498)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:626)
at
org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown
Source)
at
org.apache.xerces.impl.XMLEntityManager.startDTDEntity(Unknown Source)
at
org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1591)
at
org.apache.commons.validator.ValidatorResources.<init>(ValidatorResources.java:159)
at
org.apache.struts.validator.ValidatorPlugIn.initResources(ValidatorPlugIn.java:237)
at
org.apache.struts.validator.ValidatorPlugIn.init(ValidatorPlugIn.java:162)
at
org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:869)
at
org.apache.struts.action.ActionServlet.init(ActionServlet.java:336)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1029)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at
org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDeployer.java:903)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216)
at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)
at org.apache.commons.digester.Rule.end(Rule.java:276)
at
org.apache.commons.digester.Digester.endElement(Digester.java:1058)
at
org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester.java:76)
at
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1567)
at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:488)
at
org.apache.catalina.core.StandardHost.install(StandardHost.java:863)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:483)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:983)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
at
org.apache.catalina.core.StandardService.start(StandardService.java:480)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:2313)
at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)
The only relevant thing I could find with Google is this:
http://issues.apache.org/bugzilla/show_bug.cgi?id=17470 which implies
that the problem is with a DTD not being part of the binary package and
that the problem has been fixed. I'm on the latest version of struts
(1.2.8) and the problem is obviously still here. Basically, where do I
get a copy of this DTD and how do I install it in such a way that Tomcat
will find it without trying to access the web?
Thanks,
Bart Busschots,
Department of Computer Science,
NUI Maynooth.
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