I would love to get to the bottom of a problem that has cropped up a number
of times on this list:
* On April 29, 2008, I reported that XmlConfigurationProvider was trying to
access the internet. (At the time, I thought the problem might be due to an
incompatibility with a specific version of Tomcat.)
* On March 26, 2008, Nuwan Chandrasoma reports a similar phenomenon to do
with loading validator.xml.
I experienced anew the problem yesterday, when I could not access the
internet. This time, Struts complains that it can't find struts.xml,
looking for it in the very exact location where it is! When I have internet
access, on the other hand, struts.xml loads without a glitch! Has anyone
got an idea how to prevent Struts from trying to look online for what's
under its nose?
struts.xml is in the following path:
D:/applications/apache-tomcat-6.0.16/webapps/myapp/WEB-INF/classes/struts.xml
Version of Struts: 2.1.2
Here's struts.xml's header:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation //DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd";>
Relevant excerpt from web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="infloox"
xmlns="http://java.sun.com/xml/ns/j2ee";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd";
version="2.5">
...
<filter>
<filter-name>action2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>action2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
And finally here is the relevant part of the error trace when I am offline:
16:32:24,199 DEBUG XmlConfigurationProvider:58 - Loading action
configurations from: struts.xml
2008-06-22 16:32:24 org.apache.catalina.core.StandardContext filterStart
GRAVE: Exception au démarrage du filtre action2
Unable to load configuration. - Class: java.net.PlainSocketImpl
File: PlainSocketImpl.java
Method: connect
Line: 177 - java/net/PlainSocketImpl.java:177:-1
at
com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58)
at
org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:424)
at
org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:213)
at
org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
at
org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
at
org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
at
org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4356)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:924)
at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:887)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:516)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
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:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: Unable to load
file:/D:/applications/apache-tomcat-6.0.16/webapps/myapp/WEB-INF/classes/struts.xml
- Class: java.net.PlainSocketImpl
File: PlainSocketImpl.java
Method: connect
Line: 177 - java/net/PlainSocketImpl.java:177:-1
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:875)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:161)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:130)
at
com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:155)
at
com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
... 30 more
Caused by: struts.apache.org - Class: java.net.PlainSocketImpl
File: PlainSocketImpl.java
Method: connect
Line: 177 - java/net/PlainSocketImpl.java:177:-1
at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:122)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:870)
... 34 more
Caused by: java.net.UnknownHostException: struts.apache.org
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
at java.net.Socket.connect(Socket.java:518)
at java.net.Socket.connect(Socket.java:468)
at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:389)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:516)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.http.HttpClient.New(HttpClient.java:318)
at
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:788)
at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:729)
at
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:654)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:977)
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$DTDDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:120)
... 35 more
