Struts - Parsing error processing resource path

Question

StandardContext[bmd2]Marking servlet action as unavailable
StandardContext[bmd2]Servlet /bmd2 threw load() exception
javax.servlet.UnavailableException: Parsing error processing resource path
     at org.apache.struts.action.ActionServlet.handleConfigException(ActionServlet.java:1035)
     at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:1014)
     at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:955)
     at org.apache.struts.action.ActionServlet.init(ActionServlet.java:470)
     at javax.servlet.GenericServlet.init(GenericServlet.java:256)
     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1044)
     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:887)
     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3948)
     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4271)
     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:866)
     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:850)
     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
     at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:316)
     at org.apache.catalina.core.StandardHost.install(StandardHost.java:859)
     at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:723)
     at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:473)
     at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1002)
     at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:393)
     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1133)
     at org.apache.catalina.core.StandardHost.start(StandardHost.java:816)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1125)
     at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:518)
     at org.apache.catalina.core.StandardService.start(StandardService.java:519)
     at org.apache.catalina.core.StandardServer.start(StandardServer.java:2343)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
     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:297)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:398)
struts-config.xml
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
<!-- ======================================== Data Source Definitions -->
<data-sources>
     <data-source>
     <set-property property="driverClass" value="com.mysql.jdbc.Driver" />
     <!-- old name is com.mysql.jdbc.Driver -->
     <set-property property="url" value="jdbc:mysql://localhost/microarray" />
     <set-property property="maxCount" value="5"/>
     <set-property property="minCount" value="1"/>
     <set-property property="user" value="apache"/>
     <set-property property="password" value=null />
</data-source>
</data-sources>
<!-- ======================================== Form Bean Definitions -->
<form-beans>
<!-- Logon Form offers user to enter credentials to sing in -->
<!-- name specify the name of the Bean used -->
<!-- type specify the location and the class name -->
<form-bean
name="logonForm"
type="logon.LogonForm"/>
</form-beans>
<!-- ================================= Global Exception Definitions -->
<global-exceptions>
<!-- sample exception handler
<exception
key="expired.password"
type="app.ExpiredPasswordException"
path="/changePassword.jsp"/>
end sample -->
</global-exceptions>
<!-- ================================== Global Forward Definitions -->
<global-forwards>
<forward name="logon" path="/logon/Logon.do"/>
<forward name="logoff"path="/Welcome.do"/>
<!-- Default forward to "Welcome" action -->
<!-- Demonstrates using index.jsp to forward -->
<forward name="welcome" path="/Welcome.do"/>
</global-forwards>
<!-- =================================== Action Mapping Definitions -->
<action-mappings>
<!-- Default "Welcome" action -->
<!-- Forwards to Welcome.jsp -->
<action
path="/Welcome"
type="org.apache.struts.actions.ForwardAction"
parameter="/pages/Welcome.jsp"/>
<action
path="/logon/Logon"
type="org.apache.struts.actions.ForwardAction"
parameter="/pages/logon/Logon.jsp"/>
<!-- LogonSubmit action -->
<action
path="/logon/LogonSubmit"
type="logon.LogonAction"
name="logonForm"
scope="request"
validate="true"
input="/pages/logon/Logon.jsp">
<forward name="userpage" path="/pages/user/User.jsp"/>
</action>
</action-mappings>
<!-- ===================================== Controller Configuration -->
<controller
processorClass="org.apache.struts.tiles.TilesRequestProcessor"/>
<!-- ================================ Message Resources Definitions -->
<message-resources parameter="resources.application"/>
<!-- ======================================= Plug Ins Configuration -->
<!-- ========== Tiles plugin =================== -->
<plug-in className="org.apache.struts.tiles.TilesPlugin" >
<set-property property="definitions-config" value="/WEB-INF/tiles-defs.xml" />
<set-property property="moduleAware" value="true" />
<set-property property="definitions-parser-validate" value="true" />
</plug-in>
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property
property="pathnames"
value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"/>
</plug-in>
</struts-config>
Anyone can give me some hints on where the error is?
i have struts.jar and the other struts related files in \WEB-INF\lib

Answer 1

I ran your file through an XML parser and the only error was on the line:<set-property property="password" value=null />because there are no quotes around "null". Fix that and try again. If you're using an IDE, there should be an option to validate the XML file which enables you to check struts.config before starting up the app.