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Posted to dev@myfaces.apache.org by "Thomas Wabner (JIRA)" <de...@myfaces.apache.org> on 2006/09/25 12:09:50 UTC

[jira] Created: (TOMAHAWK-699) the statement causes a NPE

the statement <t:documentHead> causes a NPE
-------------------------------------------

                 Key: TOMAHAWK-699
                 URL: http://issues.apache.org/jira/browse/TOMAHAWK-699
             Project: MyFaces Tomahawk
          Issue Type: Bug
    Affects Versions: 1.1.3
         Environment: Tomcat 5.5.17, windows, myfaces-1.1.4
            Reporter: Thomas Wabner
         Attachments: web.xml

I'am new to myFaces and using a *minimal standard* configuration. All what I want is to display a simple "hello world" using the tomahwak <t:documentHead> and body stuff. I have configured the extention filter similar as it is described on the myFaces homepage. I got following output, if I start tomcat:

25.09.2006 12:02:00 org.apache.coyote.http11.Http11AprProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
25.09.2006 12:02:00 org.apache.coyote.ajp.AjpAprProtocol init
INFO: Initializing Coyote AJP/1.3 on ajp-8009
25.09.2006 12:02:00 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 672 ms
25.09.2006 12:02:01 org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
25.09.2006 12:02:01 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.17
25.09.2006 12:02:01 org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedStandardConfig
INFO: Reading standard config org/apache/myfaces/resource/standard-faces-config.xml
25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedClassloaderConfigurations
INFO: Reading config jar:file:/C:/Projects/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp4/webapps/spice-jom/WEB-INF/lib/tomahawk-1.1.3.jar!/META-INF/faces-config.xml
25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedWebAppConfig
INFO: Reading config /WEB-INF/faces-config.xml
25.09.2006 12:02:01 org.apache.myfaces.shared_impl.util.LocaleUtils toLocale
WARNUNG: Locale name in faces-config.xml null or empty, setting locale to default locale : de_DE
25.09.2006 12:02:02 org.apache.myfaces.webapp.StartupServletContextListener initFaces
INFO: ServletContext 'C:\Projects\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp4\webapps\spice-jom\' initialized.
25.09.2006 12:02:02 org.apache.myfaces.webapp.StartupServletContextListener handleSerialFactory
INFO: Serialization provider : class org.apache.myfaces.shared_impl.util.serial.DefaultSerialFactory
25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedStandardConfig
INFO: Reading standard config org/apache/myfaces/resource/standard-faces-config.xml
25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedClassloaderConfigurations
INFO: Reading config jar:file:/C:/Projects/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp4/webapps/spice-jom/WEB-INF/lib/tomahawk-1.1.3.jar!/META-INF/faces-config.xml
25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedWebAppConfig
INFO: Reading config /WEB-INF/faces-config.xml
25.09.2006 12:02:02 org.apache.myfaces.shared_impl.util.LocaleUtils toLocale
WARNUNG: Locale name in faces-config.xml null or empty, setting locale to default locale : de_DE
25.09.2006 12:02:03 org.apache.myfaces.webapp.StartupServletContextListener initFaces
INFO: ServletContext 'C:\Projects\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp4\webapps\spice-jom\' initialized.
25.09.2006 12:02:03 org.apache.myfaces.webapp.StartupServletContextListener handleSerialFactory
INFO: Serialization provider : class org.apache.myfaces.shared_impl.util.serial.DefaultSerialFactory
25.09.2006 12:02:03 org.apache.coyote.http11.Http11AprProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
25.09.2006 12:02:03 org.apache.coyote.ajp.AjpAprProtocol start
INFO: Starting Coyote AJP/1.3 on ajp-8009
25.09.2006 12:02:03 org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
25.09.2006 12:02:03 org.apache.catalina.startup.Catalina start
INFO: Server startup in 2375 ms
25.09.2006 12:02:06 org.apache.myfaces.shared_tomahawk.config.MyfacesConfig getBooleanInitParameter
INFO: No context init parameter 'org.apache.myfaces.CHECK_EXTENSIONS_FILTER' found, using default value true
25.09.2006 12:02:06 org.apache.myfaces.shared_impl.config.MyfacesConfig getBooleanInitParameter
INFO: No context init parameter 'org.apache.myfaces.CHECK_EXTENSIONS_FILTER' found, using default value true
25.09.2006 12:02:06 org.apache.myfaces.component.html.util.StreamingAddResource serveResource

After invoking my simple jsp site I got from tomcat:

SCHWERWIEGEND: Error while serving resource: null/header.css, message : For input string: "null"
java.lang.NumberFormatException: For input string: "null"
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
	at java.lang.Long.parseLong(Long.java:403)
	at org.apache.myfaces.component.html.util.StreamingResourceLoader.serveResource(StreamingResourceLoader.java:25)
	at org.apache.myfaces.component.html.util.StreamingAddResource.serveResource(StreamingAddResource.java:755)
	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:125)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:833)
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
	at java.lang.Thread.run(Thread.java:595)

If I have a look at the created document I see like this:

<HEAD>
		<LINK type="text/css" href="/spice-jom/faces/myFacesExtensionResource/org.apache.myfaces.component.html.util.StreamingResourceLoader/11591785/null/header.css" rel="stylesheet"/>
</HEAD>

But I don't know how the /null/ is coming in.

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[jira] Commented: (TOMAHAWK-699) the statement causes a NPE

Posted by "Todd Gould (JIRA)" <de...@myfaces.apache.org>.
    [ https://issues.apache.org/jira/browse/TOMAHAWK-699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12571057#action_12571057 ] 

Todd Gould commented on TOMAHAWK-699:
-------------------------------------

I too am seeing this behavior with the following technology stack:

JBoss AS 4.2.2.GA
Seam 2.0.1.GA
RichFaces 3.1.4.GA
MyFaces Tomahawk 1.1.6 and Sandbox 1.1.7

Reverting to the use of <html> (instead of <t:document>) and <head> (instead of t:documentHead), but retaining the use of <t:documentBody state="start"/> and <t:documentBody state="end" /> tags seems to have removed the problem for me.  I'll have to see what side effects come out of those changes as I move forward, but it was blocking all progress the original way.  It would be great to have this fixed as the StreamingAddResource functionality is very nice and appears to be required to integrate Tomahawk with Seam.

> the statement <t:documentHead> causes a NPE
> -------------------------------------------
>
>                 Key: TOMAHAWK-699
>                 URL: https://issues.apache.org/jira/browse/TOMAHAWK-699
>             Project: MyFaces Tomahawk
>          Issue Type: Bug
>    Affects Versions: 1.1.3
>         Environment: Tomcat 5.5.17, windows, myfaces-1.1.4
>            Reporter: Thomas Wabner
>         Attachments: grollmus.jsp, web.xml
>
>
> I'am new to myFaces and using a *minimal standard* configuration. All what I want is to display a simple "hello world" using the tomahwak <t:documentHead> and body stuff. I have configured the extention filter similar as it is described on the myFaces homepage. I got following output, if I start tomcat:
> 25.09.2006 12:02:00 org.apache.coyote.http11.Http11AprProtocol init
> INFO: Initializing Coyote HTTP/1.1 on http-8080
> 25.09.2006 12:02:00 org.apache.coyote.ajp.AjpAprProtocol init
> INFO: Initializing Coyote AJP/1.3 on ajp-8009
> 25.09.2006 12:02:00 org.apache.catalina.startup.Catalina load
> INFO: Initialization processed in 672 ms
> 25.09.2006 12:02:01 org.apache.catalina.core.StandardService start
> INFO: Starting service Catalina
> 25.09.2006 12:02:01 org.apache.catalina.core.StandardEngine start
> INFO: Starting Servlet Engine: Apache Tomcat/5.5.17
> 25.09.2006 12:02:01 org.apache.catalina.core.StandardHost start
> INFO: XML validation disabled
> 25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedStandardConfig
> INFO: Reading standard config org/apache/myfaces/resource/standard-faces-config.xml
> 25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedClassloaderConfigurations
> INFO: Reading config jar:file:/C:/Projects/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp4/webapps/spice-jom/WEB-INF/lib/tomahawk-1.1.3.jar!/META-INF/faces-config.xml
> 25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedWebAppConfig
> INFO: Reading config /WEB-INF/faces-config.xml
> 25.09.2006 12:02:01 org.apache.myfaces.shared_impl.util.LocaleUtils toLocale
> WARNUNG: Locale name in faces-config.xml null or empty, setting locale to default locale : de_DE
> 25.09.2006 12:02:02 org.apache.myfaces.webapp.StartupServletContextListener initFaces
> INFO: ServletContext 'C:\Projects\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp4\webapps\spice-jom\' initialized.
> 25.09.2006 12:02:02 org.apache.myfaces.webapp.StartupServletContextListener handleSerialFactory
> INFO: Serialization provider : class org.apache.myfaces.shared_impl.util.serial.DefaultSerialFactory
> 25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedStandardConfig
> INFO: Reading standard config org/apache/myfaces/resource/standard-faces-config.xml
> 25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedClassloaderConfigurations
> INFO: Reading config jar:file:/C:/Projects/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp4/webapps/spice-jom/WEB-INF/lib/tomahawk-1.1.3.jar!/META-INF/faces-config.xml
> 25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedWebAppConfig
> INFO: Reading config /WEB-INF/faces-config.xml
> 25.09.2006 12:02:02 org.apache.myfaces.shared_impl.util.LocaleUtils toLocale
> WARNUNG: Locale name in faces-config.xml null or empty, setting locale to default locale : de_DE
> 25.09.2006 12:02:03 org.apache.myfaces.webapp.StartupServletContextListener initFaces
> INFO: ServletContext 'C:\Projects\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp4\webapps\spice-jom\' initialized.
> 25.09.2006 12:02:03 org.apache.myfaces.webapp.StartupServletContextListener handleSerialFactory
> INFO: Serialization provider : class org.apache.myfaces.shared_impl.util.serial.DefaultSerialFactory
> 25.09.2006 12:02:03 org.apache.coyote.http11.Http11AprProtocol start
> INFO: Starting Coyote HTTP/1.1 on http-8080
> 25.09.2006 12:02:03 org.apache.coyote.ajp.AjpAprProtocol start
> INFO: Starting Coyote AJP/1.3 on ajp-8009
> 25.09.2006 12:02:03 org.apache.catalina.storeconfig.StoreLoader load
> INFO: Find registry server-registry.xml at classpath resource
> 25.09.2006 12:02:03 org.apache.catalina.startup.Catalina start
> INFO: Server startup in 2375 ms
> 25.09.2006 12:02:06 org.apache.myfaces.shared_tomahawk.config.MyfacesConfig getBooleanInitParameter
> INFO: No context init parameter 'org.apache.myfaces.CHECK_EXTENSIONS_FILTER' found, using default value true
> 25.09.2006 12:02:06 org.apache.myfaces.shared_impl.config.MyfacesConfig getBooleanInitParameter
> INFO: No context init parameter 'org.apache.myfaces.CHECK_EXTENSIONS_FILTER' found, using default value true
> 25.09.2006 12:02:06 org.apache.myfaces.component.html.util.StreamingAddResource serveResource
> After invoking my simple jsp site I got from tomcat:
> SCHWERWIEGEND: Error while serving resource: null/header.css, message : For input string: "null"
> java.lang.NumberFormatException: For input string: "null"
> 	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
> 	at java.lang.Long.parseLong(Long.java:403)
> 	at org.apache.myfaces.component.html.util.StreamingResourceLoader.serveResource(StreamingResourceLoader.java:25)
> 	at org.apache.myfaces.component.html.util.StreamingAddResource.serveResource(StreamingAddResource.java:755)
> 	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:125)
> 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
> 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
> 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
> 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
> 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
> 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
> 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> 	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:833)
> 	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639)
> 	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
> 	at java.lang.Thread.run(Thread.java:595)
> If I have a look at the created document I see like this:
> <HEAD>
> 		<LINK type="text/css" href="/spice-jom/faces/myFacesExtensionResource/org.apache.myfaces.component.html.util.StreamingResourceLoader/11591785/null/header.css" rel="stylesheet"/>
> </HEAD>
> But I don't know how the /null/ is coming in.

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[jira] Commented: (TOMAHAWK-699) the statement causes a NPE

Posted by "Brian Mauter (JIRA)" <de...@myfaces.apache.org>.
    [ https://issues.apache.org/jira/browse/TOMAHAWK-699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12474478 ] 

Brian Mauter commented on TOMAHAWK-699:
---------------------------------------

Hi, I'm getting the same kind of error, and I think I might be able to provide some insight.  Maybe not.  :)

We have a HttpSessionListener that tries to keep track of the number of sessions so that we can license our software for however many users.  This listener also has a JSF action called authenticate.

We've found that when a web app is reloaded, the faces session is still alive, but all of the contents of the session objects are invalid.  Faces probably gives us a good session, but we have to invalidate it anyway.  We then ask Faces for a new session.

I'm not sure, but I believe ExtensionsFilter has already gotten a reference to a session before my action was called.  I then invalidate it and later ExtensionsFilter finishes up and tries to use that session reference, only it's invalidated.  The resource ID is then null when it writes out the css <link> tag such that it looks like:  null/header.css.  The resource loader comes in and parses for the first "/" and converts it to a Long (StreamingResourceLoader, lines 43-44):
                int pos = resourceUri.indexOf("/");
                Long requestId = new Long(Long.parseLong(resourceUri.substring(0, pos), 10));

The quick fix for this would be to wrap the parsing in a try/catch in case it's not numeric.  If it's not put a warning in your logs and return.

The bigger fix is to find out why after a reload the sessions are still alive.  This was happening 1.1.3 and is still happening in 1.1.5.

Thanks,
-Brian

> the statement <t:documentHead> causes a NPE
> -------------------------------------------
>
>                 Key: TOMAHAWK-699
>                 URL: https://issues.apache.org/jira/browse/TOMAHAWK-699
>             Project: MyFaces Tomahawk
>          Issue Type: Bug
>    Affects Versions: 1.1.3
>         Environment: Tomcat 5.5.17, windows, myfaces-1.1.4
>            Reporter: Thomas Wabner
>         Attachments: grollmus.jsp, web.xml
>
>
> I'am new to myFaces and using a *minimal standard* configuration. All what I want is to display a simple "hello world" using the tomahwak <t:documentHead> and body stuff. I have configured the extention filter similar as it is described on the myFaces homepage. I got following output, if I start tomcat:
> 25.09.2006 12:02:00 org.apache.coyote.http11.Http11AprProtocol init
> INFO: Initializing Coyote HTTP/1.1 on http-8080
> 25.09.2006 12:02:00 org.apache.coyote.ajp.AjpAprProtocol init
> INFO: Initializing Coyote AJP/1.3 on ajp-8009
> 25.09.2006 12:02:00 org.apache.catalina.startup.Catalina load
> INFO: Initialization processed in 672 ms
> 25.09.2006 12:02:01 org.apache.catalina.core.StandardService start
> INFO: Starting service Catalina
> 25.09.2006 12:02:01 org.apache.catalina.core.StandardEngine start
> INFO: Starting Servlet Engine: Apache Tomcat/5.5.17
> 25.09.2006 12:02:01 org.apache.catalina.core.StandardHost start
> INFO: XML validation disabled
> 25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedStandardConfig
> INFO: Reading standard config org/apache/myfaces/resource/standard-faces-config.xml
> 25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedClassloaderConfigurations
> INFO: Reading config jar:file:/C:/Projects/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp4/webapps/spice-jom/WEB-INF/lib/tomahawk-1.1.3.jar!/META-INF/faces-config.xml
> 25.09.2006 12:02:01 org.apache.myfaces.config.FacesConfigurator feedWebAppConfig
> INFO: Reading config /WEB-INF/faces-config.xml
> 25.09.2006 12:02:01 org.apache.myfaces.shared_impl.util.LocaleUtils toLocale
> WARNUNG: Locale name in faces-config.xml null or empty, setting locale to default locale : de_DE
> 25.09.2006 12:02:02 org.apache.myfaces.webapp.StartupServletContextListener initFaces
> INFO: ServletContext 'C:\Projects\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp4\webapps\spice-jom\' initialized.
> 25.09.2006 12:02:02 org.apache.myfaces.webapp.StartupServletContextListener handleSerialFactory
> INFO: Serialization provider : class org.apache.myfaces.shared_impl.util.serial.DefaultSerialFactory
> 25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedStandardConfig
> INFO: Reading standard config org/apache/myfaces/resource/standard-faces-config.xml
> 25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedClassloaderConfigurations
> INFO: Reading config jar:file:/C:/Projects/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp4/webapps/spice-jom/WEB-INF/lib/tomahawk-1.1.3.jar!/META-INF/faces-config.xml
> 25.09.2006 12:02:02 org.apache.myfaces.config.FacesConfigurator feedWebAppConfig
> INFO: Reading config /WEB-INF/faces-config.xml
> 25.09.2006 12:02:02 org.apache.myfaces.shared_impl.util.LocaleUtils toLocale
> WARNUNG: Locale name in faces-config.xml null or empty, setting locale to default locale : de_DE
> 25.09.2006 12:02:03 org.apache.myfaces.webapp.StartupServletContextListener initFaces
> INFO: ServletContext 'C:\Projects\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp4\webapps\spice-jom\' initialized.
> 25.09.2006 12:02:03 org.apache.myfaces.webapp.StartupServletContextListener handleSerialFactory
> INFO: Serialization provider : class org.apache.myfaces.shared_impl.util.serial.DefaultSerialFactory
> 25.09.2006 12:02:03 org.apache.coyote.http11.Http11AprProtocol start
> INFO: Starting Coyote HTTP/1.1 on http-8080
> 25.09.2006 12:02:03 org.apache.coyote.ajp.AjpAprProtocol start
> INFO: Starting Coyote AJP/1.3 on ajp-8009
> 25.09.2006 12:02:03 org.apache.catalina.storeconfig.StoreLoader load
> INFO: Find registry server-registry.xml at classpath resource
> 25.09.2006 12:02:03 org.apache.catalina.startup.Catalina start
> INFO: Server startup in 2375 ms
> 25.09.2006 12:02:06 org.apache.myfaces.shared_tomahawk.config.MyfacesConfig getBooleanInitParameter
> INFO: No context init parameter 'org.apache.myfaces.CHECK_EXTENSIONS_FILTER' found, using default value true
> 25.09.2006 12:02:06 org.apache.myfaces.shared_impl.config.MyfacesConfig getBooleanInitParameter
> INFO: No context init parameter 'org.apache.myfaces.CHECK_EXTENSIONS_FILTER' found, using default value true
> 25.09.2006 12:02:06 org.apache.myfaces.component.html.util.StreamingAddResource serveResource
> After invoking my simple jsp site I got from tomcat:
> SCHWERWIEGEND: Error while serving resource: null/header.css, message : For input string: "null"
> java.lang.NumberFormatException: For input string: "null"
> 	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
> 	at java.lang.Long.parseLong(Long.java:403)
> 	at org.apache.myfaces.component.html.util.StreamingResourceLoader.serveResource(StreamingResourceLoader.java:25)
> 	at org.apache.myfaces.component.html.util.StreamingAddResource.serveResource(StreamingAddResource.java:755)
> 	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:125)
> 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
> 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
> 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
> 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
> 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
> 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
> 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> 	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:833)
> 	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639)
> 	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
> 	at java.lang.Thread.run(Thread.java:595)
> If I have a look at the created document I see like this:
> <HEAD>
> 		<LINK type="text/css" href="/spice-jom/faces/myFacesExtensionResource/org.apache.myfaces.component.html.util.StreamingResourceLoader/11591785/null/header.css" rel="stylesheet"/>
> </HEAD>
> But I don't know how the /null/ is coming in.

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