Spring 3, OpenJPA 2 and Commons-fileupload.

[sudhi]

Hi All,

i am using Spring 3.1, with OpenJPA 2.1 in JBOSS 7 . As per discussions and few articles, i have created new module for OpenJPA 2.1and used in application. Application worked fine until a functional requirement came for uploading files wherein we were supposed to use commons-fileupload.

Firstly while creating module for OpenJPA, server failed to start until i added Commons-fileupload jar. Below shows the module.xml that i used for OpenJPA 2, So question is not sure why OpenJPA is refering to fileupload.

<module xmlns="urn:jboss:module:1.1" name="org.apache.openjpa">

    <resources>

        <resource-root path="openjpa-all-2.2.0.jar"/>

        <resource-root path="serp-1.13.1.jar"/>

        <resource-root path="commons-fileupload-1.2.2.jar"/>

    </resources>

        <dependencies>

            <module name="javax.persistence.api"/>

            <module name="javax.transaction.api"/>

            <module name="javax.validation.api"/>

            <module name="org.apache.log4j"/>

        </dependencies>

</module>

Secondly, after above conf, when i wanted to implement upload functionality, i created a controller in Spring and multipart request was sent.

But runtime i get NoClassDefFound excpetion for HttpServletRequest

java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest

org.apache.commons.fileupload.servlet.ServletFileUpload.isMultipartContent(ServletFileUpload.java:68)

org.springframework.web.multipart.commons.CommonsMultipartResolver.isMultipart(CommonsMultipartResolver.java:122)

org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:991)

org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:860)

org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:827)

org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)

org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)

javax.servlet.http.HttpServlet.service(HttpServlet.java:754)

javax.servlet.http.HttpServlet.service(HttpServlet.java:847)

Can anyone please tell me where i am going wrong or guide me for right class loading approach that needs to be followed in Jboss 7

Thanks

Sudhi

[nickarls]

Hmm, the server should be giving you the HttpServletRequest automatically. Can you do a jar -tf of your jar to make sure you don't package any extra javax.* (e.g. the servlet api jar) that might confuse the classloader?

[sudhi]

Nicklas,

i verified that no servlet-api.jars are available in application lib,

Just to test, i removed spring multipart configuration then i wont get above exception but i wont be able to use common-fileupload.

Does adding Commons-fileupload in OpenJPA module make difference ?

<!-- Multipart conf -->

<bean id="multipartResolver" 

        class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> 

        <property name="maxUploadSize"> 

            <value>104857600</value> 

        </property> 

        <property name="maxInMemorySize"> 

            <value>4096</value> 

        </property>     

    </bean>

Thanks

Sudhi

[nickarls]

I don't think OpenJPA has anything to do with commons-fileupload. I think Spring uses commons-fileupload and commons-fileupload uses the HttpServletRequest. If you package Spring with your application, you should also package commons-fileupload with the app (and take away it from the OpenJPA module). What is the stacktrace then?