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Posted to user@geronimo.apache.org by michaelg <mi...@gmail.com> on 2008/05/14 06:55:40 UTC

Geronimo and Grails

I am writing an article for IBM developerWorks on using Grails and Geronimo
together. However, I am unable to deploy a Grails WAR to Geronimo. 

I first tried it with Geronimo 2.1.1 with Jetty. The error I got was a
NoClassDefFound for org.apache.commons.fileupload.FileItemFactory. This
class is the Geronimo repository, and is also included with the Grails war.
It's the same version for both. 

Next I tried it with Geronimo 2.1.1 with Tomcat. This time I got a dom4j
InvalidXPathException. 

Next I tried the Little G distribution. It worked perfectly. I had also
tried standalone Tomcat with success as well, so I guess this should not
have been too surprising.

Obviously I have to point a finger at Grails or Geronimo, and since it works
fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
Geronimo/Jetty error sure smelled like a class loader problem, but I have no
clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
deployment plan inside the WAR (/WEB-INF/geronimo-web.xml) 

Any ideas/advice is greatly appreciated.
-- 
View this message in context: http://www.nabble.com/Geronimo-and-Grails-tp17223357s134p17223357.html
Sent from the Apache Geronimo - Users mailing list archive at Nabble.com.


Re: Geronimo and Grails

Posted by Joe Bohn <jo...@earthlink.net>.
David Jencks wrote:
> 
> On May 13, 2008, at 9:55 PM, michaelg wrote:
> 
>>
>> I am writing an article for IBM developerWorks on using Grails and 
>> Geronimo
>> together. However, I am unable to deploy a Grails WAR to Geronimo.
>>
>> I first tried it with Geronimo 2.1.1 with Jetty. The error I got was a
>> NoClassDefFound for org.apache.commons.fileupload.FileItemFactory. This
>> class is the Geronimo repository, and is also included with the Grails 
>> war.
>> It's the same version for both.
>>
>> Next I tried it with Geronimo 2.1.1 with Tomcat. This time I got a dom4j
>> InvalidXPathException.
>>
>> Next I tried the Little G distribution. It worked perfectly. I had also
>> tried standalone Tomcat with success as well, so I guess this should not
>> have been too surprising.
>>
>> Obviously I have to point a finger at Grails or Geronimo, and since it 
>> works
>> fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
>> Geronimo/Jetty error sure smelled like a class loader problem, but I 
>> have no
>> clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
>> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml)
> 
> It doesn't matter whether the plan is included in the app or supplied 
> externally.
>>
>>
>> Any ideas/advice is greatly appreciated.
> 
> I'm surprised you are seeing different results on "big" and "little" 
> geronimo.  You should be getting the same classloader for your app in 
> either server.  


Would it have worked in little G because little G does not include 
commons-fileupload and so there is no chance of loading a class from one 
classloader and using it in another?


Would it be possible to share your app so we can take a
> look at what is going on?
> 
> If I was writing an article on geronimo I would structure the project so 
> it consisted of one or more geronimo plugins and would show how to 
> construct a specialized server including those plugins.  This is by far 
> easier if you are using maven, which I realize might not fit with the 
> requirements you are working under.  There are some instructions on how 
> to do something similar here:
> 
> http://cwiki.apache.org/confluence/display/GMOxDOC21/Constructing+a+special-purpose+server+using+maven 
> 
> 
> thanks
> david jencks
> 
>>
>> -- 
>> View this message in context: 
>> http://www.nabble.com/Geronimo-and-Grails-tp17223357s134p17223357.html
>> Sent from the Apache Geronimo - Users mailing list archive at Nabble.com.
>>
> 
> 


Re: Geronimo and Grails

Posted by David Jencks <da...@yahoo.com>.
On May 13, 2008, at 9:55 PM, michaelg wrote:

>
> I am writing an article for IBM developerWorks on using Grails and  
> Geronimo
> together. However, I am unable to deploy a Grails WAR to Geronimo.
>
> I first tried it with Geronimo 2.1.1 with Jetty. The error I got was a
> NoClassDefFound for org.apache.commons.fileupload.FileItemFactory.  
> This
> class is the Geronimo repository, and is also included with the  
> Grails war.
> It's the same version for both.
>
> Next I tried it with Geronimo 2.1.1 with Tomcat. This time I got a  
> dom4j
> InvalidXPathException.
>
> Next I tried the Little G distribution. It worked perfectly. I had  
> also
> tried standalone Tomcat with success as well, so I guess this should  
> not
> have been too surprising.
>
> Obviously I have to point a finger at Grails or Geronimo, and since  
> it works
> fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
> Geronimo/Jetty error sure smelled like a class loader problem, but I  
> have no
> clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml)

It doesn't matter whether the plan is included in the app or supplied  
externally.
>
>
> Any ideas/advice is greatly appreciated.

I'm surprised you are seeing different results on "big" and "little"  
geronimo.  You should be getting the same classloader for your app in  
either server.  Would it be possible to share your app so we can take  
a look at what is going on?

If I was writing an article on geronimo I would structure the project  
so it consisted of one or more geronimo plugins and would show how to  
construct a specialized server including those plugins.  This is by  
far easier if you are using maven, which I realize might not fit with  
the requirements you are working under.  There are some instructions  
on how to do something similar here:

http://cwiki.apache.org/confluence/display/GMOxDOC21/Constructing+a+special-purpose+server+using+maven

thanks
david jencks

>
> -- 
> View this message in context: http://www.nabble.com/Geronimo-and-Grails-tp17223357s134p17223357.html
> Sent from the Apache Geronimo - Users mailing list archive at  
> Nabble.com.
>


Re: Geronimo and Grails

Posted by David Jencks <da...@yahoo.com>.
On Oct 27, 2008, at 9:08 AM, Joe Bohn wrote:

> David Jencks wrote:
>> On Oct 24, 2008, at 11:13 AM, Joe Bohn wrote:
>>>
>>> I've been playing around with grails and I encountered this exact  
>>> same behavior Michael mentioned.  Even with Gianny's recommended  
>>> hidden classes I received the dom4j InvalidXPathException on the  
>>> Tomcat Javaee5 assembly.
>>>
>>> I was able to get a grails app working on a tomcat javaee5  
>>> assembly by adding just one more filter for the jaxen classes.   
>>> So, my geroniom-web.xml looks like this:
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.2">
>>>   <environment xmlns="http://geronimo.apache.org/xml/ns/deployment-1.2 
>>> ">
>>>       <moduleId>
>>>           <groupId>yourGroupId</groupId>
>>>           <artifactId>yourArtifactId</artifactId>
>>>           <version>yourVersion</version>
>>>           <type>war</type>
>>>       </moduleId>
>>>       <hidden-classes>
>>>           <filter>org.jaxen</filter>
>>>           <filter>org.springframework</filter>
>>>           <filter>org.apache.cxf</filter>
>>>           <filter>org.apache.commons</filter>
>>>       </hidden-classes>
>>>   </environment>
>>>   <context-root>/yourContextPath/</context-root>
>>> </web-app>
>>>
>>> BTW, it is true that you can deploy a grails app into either  
>>> minimal assembly without any hidden-class filters in the  
>>> deployment plan.  The additional libraries in the javaee5  
>>> assemblies make the filters necessary.  Apparently there are some  
>>> classloader differences between the Jetty and Tomcat assemblies  
>>> that make the jaxen addition necessary when deploying to a Tomcat  
>>> Javaee5 server.
>> It would be nice to figure out what the differences are.  My first  
>> guess would be myfaces, my second some web services bit.  I think  
>> that a ModuleBuilderExtension must be adding more dependencies for  
>> no good reason.  It would be even better to fix this.
>
>
> I think your second guess is the right one.  A little more  
> investigation revealed that the only real hidden-classes entries  
> needed are as follows:
> - springframework  - when installing in a javaee5 jetty assembly
> - jaxen - when installing in a javaee5 tomcat assembly
>
> That's because our axis2 module includes a dependency on jaxen and  
> our cxf module includes a dependency on spring.
>
> I'm now experimenting to see if these dependencies are really  
> necessary.  If they are, then the next step is to recall how to  
> exclude these dependencies from the default-environment when being  
> processed by the axis2 and cxf builders.

Actually the fix I was hoping for was for the MBEs to only add to the  
default environment if they were actually going to install some gbeans  
that needed the additions.

IIRC the last time I looked into this I got stuck....
problem:
we add in the MBE default env on the first call into the MBE before we  
have enough info to look around and see if the MBE is applicable
By the time we do have enough info, the classloader is already set up  
and doesn't seem to be modifiable.

Solution strategies:
1. Construct enough temporary context so we can actually figure out if  
the MBE is applicable on the first call
2. Figure out how to reset the classloader in the middle of deployment  
to a new one with the MBE dependencies in it, if needed
3. separate the deploy time classloader from the classloader structure  
we record in the deployed car file.  In other words, the MBE can add  
the default env in to the classloader used for deployment, but  
postpone the decision whether the default env should be added to the  
classloader description in the car file.
3.a. Construct a MBE specific classloader with the default env and  
including the regular deployment classloader as a parent.  This can be  
used for the "addGBeans" step.  If we determine that the MBE is  
applicable then we can add in the default env to the classloader  
description in the car without trying to change the deployment  
classloader.

I don't think (1) is practical, if anyone sees how to do it that would  
be great. (2) seems conceptually cleanest but I couldn't get it to  
work when I tried.  I just thought of (3): I think 3.a would cause  
less framework disruption and it seems a little cleaner to me.

thanks
david jencks


>
>
> Joe
>
>>>
>>>
>>>
>>> michaelg wrote:
>>>> I am writing an article for IBM developerWorks on using Grails  
>>>> and Geronimo
>>>> together. However, I am unable to deploy a Grails WAR to  
>>>> Geronimo. I first tried it with Geronimo 2.1.1 with Jetty. The  
>>>> error I got was a
>>>> NoClassDefFound for  
>>>> org.apache.commons.fileupload.FileItemFactory. This
>>>> class is the Geronimo repository, and is also included with the  
>>>> Grails war.
>>>> It's the same version for both. Next I tried it with Geronimo  
>>>> 2.1.1 with Tomcat. This time I got a dom4j
>>>> InvalidXPathException. Next I tried the Little G distribution. It  
>>>> worked perfectly. I had also
>>>> tried standalone Tomcat with success as well, so I guess this  
>>>> should not
>>>> have been too surprising.
>>>> Obviously I have to point a finger at Grails or Geronimo, and  
>>>> since it works
>>>> fine on Tomcat or Little G, I am pointing the finger at Geronimo.  
>>>> The
>>>> Geronimo/Jetty error sure smelled like a class loader problem,  
>>>> but I have no
>>>> clue on the Geronimo/Tomcat. Note, in all cases I included a  
>>>> Geronimo
>>>> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml) Any  
>>>> ideas/advice is greatly appreciated.
>>>
>


Re: Geronimo and Grails

Posted by Joe Bohn <jo...@earthlink.net>.
David Jencks wrote:
> 
> On Oct 24, 2008, at 11:13 AM, Joe Bohn wrote:
> 
>>
>> I've been playing around with grails and I encountered this exact same 
>> behavior Michael mentioned.  Even with Gianny's recommended hidden 
>> classes I received the dom4j InvalidXPathException on the Tomcat 
>> Javaee5 assembly.
>>
>> I was able to get a grails app working on a tomcat javaee5 assembly by 
>> adding just one more filter for the jaxen classes.  So, my 
>> geroniom-web.xml looks like this:
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.2">
>>    <environment xmlns="http://geronimo.apache.org/xml/ns/deployment-1.2">
>>        <moduleId>
>>            <groupId>yourGroupId</groupId>
>>            <artifactId>yourArtifactId</artifactId>
>>            <version>yourVersion</version>
>>            <type>war</type>
>>        </moduleId>
>>        <hidden-classes>
>>            <filter>org.jaxen</filter>
>>            <filter>org.springframework</filter>
>>            <filter>org.apache.cxf</filter>
>>            <filter>org.apache.commons</filter>
>>        </hidden-classes>
>>    </environment>
>>    <context-root>/yourContextPath/</context-root>
>> </web-app>
>>
>> BTW, it is true that you can deploy a grails app into either minimal 
>> assembly without any hidden-class filters in the deployment plan.  The 
>> additional libraries in the javaee5 assemblies make the filters 
>> necessary.  Apparently there are some classloader differences between 
>> the Jetty and Tomcat assemblies that make the jaxen addition necessary 
>> when deploying to a Tomcat Javaee5 server.
> 
> It would be nice to figure out what the differences are.  My first guess 
> would be myfaces, my second some web services bit.  I think that a 
> ModuleBuilderExtension must be adding more dependencies for no good 
> reason.  It would be even better to fix this.


I think your second guess is the right one.  A little more investigation 
revealed that the only real hidden-classes entries needed are as follows:
- springframework  - when installing in a javaee5 jetty assembly
- jaxen - when installing in a javaee5 tomcat assembly

That's because our axis2 module includes a dependency on jaxen and our 
cxf module includes a dependency on spring.

I'm now experimenting to see if these dependencies are really necessary. 
  If they are, then the next step is to recall how to exclude these 
dependencies from the default-environment when being processed by the 
axis2 and cxf builders.

Joe

>>
>>
>>
>> michaelg wrote:
>>> I am writing an article for IBM developerWorks on using Grails and 
>>> Geronimo
>>> together. However, I am unable to deploy a Grails WAR to Geronimo. I 
>>> first tried it with Geronimo 2.1.1 with Jetty. The error I got was a
>>> NoClassDefFound for org.apache.commons.fileupload.FileItemFactory. This
>>> class is the Geronimo repository, and is also included with the 
>>> Grails war.
>>> It's the same version for both. Next I tried it with Geronimo 2.1.1 
>>> with Tomcat. This time I got a dom4j
>>> InvalidXPathException. Next I tried the Little G distribution. It 
>>> worked perfectly. I had also
>>> tried standalone Tomcat with success as well, so I guess this should not
>>> have been too surprising.
>>> Obviously I have to point a finger at Grails or Geronimo, and since 
>>> it works
>>> fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
>>> Geronimo/Jetty error sure smelled like a class loader problem, but I 
>>> have no
>>> clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
>>> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml) Any 
>>> ideas/advice is greatly appreciated.
>>
> 
> 


Re: Geronimo and Grails

Posted by David Jencks <da...@yahoo.com>.
On Oct 24, 2008, at 11:13 AM, Joe Bohn wrote:

>
> I've been playing around with grails and I encountered this exact  
> same behavior Michael mentioned.  Even with Gianny's recommended  
> hidden classes I received the dom4j InvalidXPathException on the  
> Tomcat Javaee5 assembly.
>
> I was able to get a grails app working on a tomcat javaee5 assembly  
> by adding just one more filter for the jaxen classes.  So, my  
> geroniom-web.xml looks like this:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.2">
>    <environment xmlns="http://geronimo.apache.org/xml/ns/deployment-1.2 
> ">
>        <moduleId>
>            <groupId>yourGroupId</groupId>
>            <artifactId>yourArtifactId</artifactId>
>            <version>yourVersion</version>
>            <type>war</type>
>        </moduleId>
>        <hidden-classes>
>            <filter>org.jaxen</filter>
>            <filter>org.springframework</filter>
>            <filter>org.apache.cxf</filter>
>            <filter>org.apache.commons</filter>
>        </hidden-classes>
>    </environment>
>    <context-root>/yourContextPath/</context-root>
> </web-app>
>
> BTW, it is true that you can deploy a grails app into either minimal  
> assembly without any hidden-class filters in the deployment plan.   
> The additional libraries in the javaee5 assemblies make the filters  
> necessary.  Apparently there are some classloader differences  
> between the Jetty and Tomcat assemblies that make the jaxen addition  
> necessary when deploying to a Tomcat Javaee5 server.

It would be nice to figure out what the differences are.  My first  
guess would be myfaces, my second some web services bit.  I think that  
a ModuleBuilderExtension must be adding more dependencies for no good  
reason.  It would be even better to fix this.

thanks
david jencks

>
>
> Joe
>
>
>
> michaelg wrote:
>> I am writing an article for IBM developerWorks on using Grails and  
>> Geronimo
>> together. However, I am unable to deploy a Grails WAR to Geronimo.  
>> I first tried it with Geronimo 2.1.1 with Jetty. The error I got  
>> was a
>> NoClassDefFound for org.apache.commons.fileupload.FileItemFactory.  
>> This
>> class is the Geronimo repository, and is also included with the  
>> Grails war.
>> It's the same version for both. Next I tried it with Geronimo 2.1.1  
>> with Tomcat. This time I got a dom4j
>> InvalidXPathException. Next I tried the Little G distribution. It  
>> worked perfectly. I had also
>> tried standalone Tomcat with success as well, so I guess this  
>> should not
>> have been too surprising.
>> Obviously I have to point a finger at Grails or Geronimo, and since  
>> it works
>> fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
>> Geronimo/Jetty error sure smelled like a class loader problem, but  
>> I have no
>> clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
>> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml) Any  
>> ideas/advice is greatly appreciated.
>


Re: Geronimo and Grails

Posted by Joe Bohn <jo...@earthlink.net>.
I've been playing around with grails and I encountered this exact same 
behavior Michael mentioned.  Even with Gianny's recommended hidden 
classes I received the dom4j InvalidXPathException on the Tomcat Javaee5 
assembly.

I was able to get a grails app working on a tomcat javaee5 assembly by 
adding just one more filter for the jaxen classes.  So, my 
geroniom-web.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.2">
     <environment xmlns="http://geronimo.apache.org/xml/ns/deployment-1.2">
         <moduleId>
             <groupId>yourGroupId</groupId>
             <artifactId>yourArtifactId</artifactId>
             <version>yourVersion</version>
             <type>war</type>
         </moduleId>
         <hidden-classes>
             <filter>org.jaxen</filter>
             <filter>org.springframework</filter>
             <filter>org.apache.cxf</filter>
             <filter>org.apache.commons</filter>
         </hidden-classes>
     </environment>
     <context-root>/yourContextPath/</context-root>
</web-app>

BTW, it is true that you can deploy a grails app into either minimal 
assembly without any hidden-class filters in the deployment plan.  The 
additional libraries in the javaee5 assemblies make the filters 
necessary.  Apparently there are some classloader differences between 
the Jetty and Tomcat assemblies that make the jaxen addition necessary 
when deploying to a Tomcat Javaee5 server.

Joe



michaelg wrote:
> I am writing an article for IBM developerWorks on using Grails and Geronimo
> together. However, I am unable to deploy a Grails WAR to Geronimo. 
> 
> I first tried it with Geronimo 2.1.1 with Jetty. The error I got was a
> NoClassDefFound for org.apache.commons.fileupload.FileItemFactory. This
> class is the Geronimo repository, and is also included with the Grails war.
> It's the same version for both. 
> 
> Next I tried it with Geronimo 2.1.1 with Tomcat. This time I got a dom4j
> InvalidXPathException. 
> 
> Next I tried the Little G distribution. It worked perfectly. I had also
> tried standalone Tomcat with success as well, so I guess this should not
> have been too surprising.
> 
> Obviously I have to point a finger at Grails or Geronimo, and since it works
> fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
> Geronimo/Jetty error sure smelled like a class loader problem, but I have no
> clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml) 
> 
> Any ideas/advice is greatly appreciated.


Re: Geronimo and Grails

Posted by Michael Galpin <mi...@gmail.com>.
The hidden classes works great for Jetty. I will make sure this is included
in the IBM article so that other folks don't have this problem. Thanks for
the help!

On Wed, May 14, 2008 at 4:11 AM, Gianny Damour <
gianny.damour@optusnet.com.au> wrote:

> Hello,
>
> I have been running Grails 0.5+ applications on Geronimo 2.x and this works
> w/o problem as long as you hide specific packages. Your geronimo-web.xml
> should look like the following one:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web/jetty-1.2">
>
>    <environment>
>        <moduleId>
>            <groupId>yourGroupId</groupId>
>            <artifactId>yourArtifactId</artifactId>
>            <version>yourVersion</version>
>            <type>war</type>
>        </moduleId>
>
>        <hidden-classes>
>          <filter>org.springframework</filter>
>          <filter>org.apache.cxf</filter>
>          <filter>org.apache.commons</filter>
>        </hidden-classes>
>
>    </environment>
>
>    <context-root>/yourContextPath</context-root>
>
> </web-app>
>
>
> Thanks,
> Gianny
>
>
> On 14/05/2008, at 2:55 PM, michaelg wrote:
>
>
>> I am writing an article for IBM developerWorks on using Grails and
>> Geronimo
>> together. However, I am unable to deploy a Grails WAR to Geronimo.
>>
>> I first tried it with Geronimo 2.1.1 with Jetty. The error I got was a
>> NoClassDefFound for org.apache.commons.fileupload.FileItemFactory. This
>> class is the Geronimo repository, and is also included with the Grails
>> war.
>> It's the same version for both.
>>
>> Next I tried it with Geronimo 2.1.1 with Tomcat. This time I got a dom4j
>> InvalidXPathException.
>>
>> Next I tried the Little G distribution. It worked perfectly. I had also
>> tried standalone Tomcat with success as well, so I guess this should not
>> have been too surprising.
>>
>> Obviously I have to point a finger at Grails or Geronimo, and since it
>> works
>> fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
>> Geronimo/Jetty error sure smelled like a class loader problem, but I have
>> no
>> clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
>> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml)
>>
>> Any ideas/advice is greatly appreciated.
>> --
>> View this message in context: http://www.nabble.com/Geronimo-and-
>> Grails-tp17223357s134p17223357.html
>> Sent from the Apache Geronimo - Users mailing list archive at Nabble.com.
>>
>>
>

Re: Geronimo and Grails

Posted by Gianny Damour <gi...@optusnet.com.au>.
Hello,

I have been running Grails 0.5+ applications on Geronimo 2.x and this  
works w/o problem as long as you hide specific packages. Your  
geronimo-web.xml should look like the following one:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web/jetty-1.2">

     <environment>
         <moduleId>
             <groupId>yourGroupId</groupId>
             <artifactId>yourArtifactId</artifactId>
             <version>yourVersion</version>
             <type>war</type>
         </moduleId>

         <hidden-classes>
           <filter>org.springframework</filter>
           <filter>org.apache.cxf</filter>
           <filter>org.apache.commons</filter>
         </hidden-classes>

     </environment>

     <context-root>/yourContextPath</context-root>

</web-app>


Thanks,
Gianny


On 14/05/2008, at 2:55 PM, michaelg wrote:

>
> I am writing an article for IBM developerWorks on using Grails and  
> Geronimo
> together. However, I am unable to deploy a Grails WAR to Geronimo.
>
> I first tried it with Geronimo 2.1.1 with Jetty. The error I got was a
> NoClassDefFound for org.apache.commons.fileupload.FileItemFactory.  
> This
> class is the Geronimo repository, and is also included with the  
> Grails war.
> It's the same version for both.
>
> Next I tried it with Geronimo 2.1.1 with Tomcat. This time I got a  
> dom4j
> InvalidXPathException.
>
> Next I tried the Little G distribution. It worked perfectly. I had  
> also
> tried standalone Tomcat with success as well, so I guess this  
> should not
> have been too surprising.
>
> Obviously I have to point a finger at Grails or Geronimo, and since  
> it works
> fine on Tomcat or Little G, I am pointing the finger at Geronimo. The
> Geronimo/Jetty error sure smelled like a class loader problem, but  
> I have no
> clue on the Geronimo/Tomcat. Note, in all cases I included a Geronimo
> deployment plan inside the WAR (/WEB-INF/geronimo-web.xml)
>
> Any ideas/advice is greatly appreciated.
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>