Hi all,
[Tomcat 6.0.18, java 1.5.0_16, struts 1.2.8]
I have a struts 1.2.8 app [I know, that's antediluvian] which has been
running fine for some time.
I'm now trying to add log4j logging to it. I am getting an extremely
strange side-effect when I
add a log4j.properties file to WEB-INF/classes in my app, even a very
simple one.
When no log4j.properties file is present, my app starts and runs just
fine.
But when I add WEB-INF/classes/log4j.properties, even as simple a file
as
log4j.rootLogger=ERROR, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%-4r [%t] %-5p %c %x -
%m%n
then what happens when this is present is that I get the following
error during startup:
4 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] ERROR
org.apache.commons.digester.Digester - Parse Error at line 405 column
17: The content of element type "struts-config" must match "(display-
name?,description?,data-sources?,form-beans?,global-exceptions?,global-
forwards?,action-mappings?,controller?,message-resources*,plug-in*)".
org.xml.sax.SAXParseException: The content of element type "struts-
config" must match "(display-name?,description?,data-sources?,form-
beans?,global-exceptions?,global-forwards?,action-
mappings?,controller?,message-resources*,plug-in*)".
at
org
.apache
.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at
org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown
Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.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:1745)
at
org
.apache
.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:
738)
at
org
.apache
.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:687)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:333)
at javax.servlet.GenericServlet.init(GenericServlet.java:212)
at
org
.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:
1172)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:
992)
at
org
.apache
.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:
4371)
at
org.apache.catalina.core.StandardContext.reload(StandardContext.java:
3099)
at
org
.apache
.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:404)
at
org
.apache
.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1309)
at org.apache.catalina.core.ContainerBase
$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
at org.apache.catalina.core.ContainerBase
$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase
$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase
$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
at java.lang.Thread.run(Thread.java:613)
It would appear that log4j is causing some different parsing tools to
be loaded when it is present.
Here are the jars in WEB-INF/lib which I believe are x-related:
jaxen-1.1-beta-7.jar
jaxen-full.jar
jaxp-api.jar
sax.jar
saxpath.jar
xalan.jar
xerces-2.6.2.jar
xercesImpl.jar
xml-apis.jar
Has anyone any thoughts on what might be happening here?
Thanks in advance,
Ken
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