Re: Problem with Struts Validator on machines without internet access

Fri, 20 Jan 2006 05:39:01 -0800

FYI this problem has now been solved. When I upgraded to the latest struts in my app I had forgotten to replace my old validation-rules.xml with the new one. Once I made that replacement everything started working again. 

Thanks for your help,

Bart.

Bart Busschots wrote:


Thanks for your reply Niall,

The Definition I have at the top of my validation.xml was:
<!DOCTYPE form-validation PUBLIC "-//Apache Software Foundation// DTD Commons Validator Rules Configuration 1.0//EN" "http://jakarta.apache.org/commons/dtds/validator_1_0.dtd";>
That looks right to me and looks like it was using the 1.0 DTD which is supposed to be shipped in the jar file (which is straight from the very latest struts binary distribution which I downloaded yesterday). Just to test I decided that I'd change it to the 1.1.3 DTD like you showed below and now tomcat starts but every time I try to submit a form using validation it throws and exception and does not actually validate the data:
Jan 20, 2006 12:53:32 PM org.apache.struts.validator.DynaValidatorForm validate SEVERE: org.apache.struts.validator.FieldChecks.validateRequired(java.lang.Object, org.apache.commons.validator.ValidatorAction, org.apache.commons.validator.Field, org.apache.struts.action.ActionMessages, javax.servlet.http.HttpServletRequest) org.apache.commons.validator.ValidatorException: org.apache.struts.validator.FieldChecks.validateRequired(java.lang.Object, org.apache.commons.validator.ValidatorAction, org.apache.commons.validator.Field, org.apache.struts.action.ActionMessages, javax.servlet.http.HttpServletRequest) at org.apache.commons.validator.ValidatorAction.loadValidationMethod(ValidatorAction.java:627) at org.apache.commons.validator.ValidatorAction.executeValidationMethod(ValidatorAction.java:557) at org.apache.commons.validator.Field.validateForRule(Field.java:827) 
       at org.apache.commons.validator.Field.validate(Field.java:906)
       at org.apache.commons.validator.Form.validate(Form.java:174)
at org.apache.commons.validator.Validator.validate(Validator.java:367) at org.apache.struts.validator.DynaValidatorForm.validate(DynaValidatorForm.java:110) at org.apache.struts.action.RequestProcessor.processValidate(RequestProcessor.java:927) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:204) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) 
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) 
       at java.lang.Thread.run(Thread.java:552)
My first thought was that my XML was obviously not valid for 1.1.3 but my XML editor tells me that the file does validate against the 1.1.3 DTD so that isn't it. Any other ideas what is making the validator die so horribly would be greatly appreciated. 

Thanks,

Bart.

Niall Pemberton wrote:


The DTD's are shipped in the Commons Validator jar - when the xml config
file(s) are parsed (using Digester) local copies of the DTD (i.e. the ones 
in the jar) are registered and should be picked up and therefore it
shouldn't need to go over the net to get them. This problem usually occurs when the DTD declaration in your validatior xml config files is incorrect.
You should have something like the following at the top of your validator 
xml files...

<!DOCTYPE form-validation PUBLIC
   "-//Apache Software Foundation//DTD Commons Validator Rules
Configuration 1.1.3//EN"
   "http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd";>
The above is for Version 1.1.3 of Commons Validator DTD - but the jar also contains DTDs for 1.0, 1.0.1, and 1.1 - so declarations for them should also 
work locally.
If your DTD declaration is correct, the other thing you might check is that 
you have deployed the correct Commons Validator jar.

Niall

----- Original Message ----- From: "Bart Busschots" <[EMAIL PROTECTED]>
To: <user@struts.apache.org>
Sent: Friday, January 20, 2006 12:06 AM
Subject: Problem with Struts Validator on machines without internet access 



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.j 
ava:521)

       at
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:4 
98)

       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.ja 
va:159)

       at
org.apache.struts.validator.ValidatorPlugIn.initResources(ValidatorPlugIn.ja 
va: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:10 
29)

       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:8 
23)

       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:7 
6)

       at
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
       at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown 
Source)
       at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatc 
her.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.j 
ava: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(LifecycleSuppor 
t.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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