NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream in uploading file with SpringMVC/Wildfly/CentOS

Question

While I successfully upload files to my web application in SpringMVC/Widlfly/Ubuntu stack, I encounter NoClassDefFoundError exception in SpringMVC/Widlfly/CentOs. Both stack has same Wildfly, same JDK, and same configurations.

Environment:

SpringMVC
Wildfly 8.1 / Wildfly 8.2
JDK 1.7.0_51-b13
JAR files:
- my-ear.ear/my-web.war/WEB-INF/lib/commons-io-2.4.jar
- my-ear.ear/my-web.war/WEB-INF/lib/commons-fileupload-1.3.1.jar
- wildfly-8.1.0.Final/modules/system/layers/base/org/apache/commons/io/main/commons-io-2.4.jar

I know that this exception is due to conflicting in class-loader.

Make sure this class exist in jar file `org/apache/commons/io/output/DeferredFileOutputStream` and let us know. — Altmish-E-Azam, Nov 27 '14 at 07:26
have you checked you jboss deployment structure references the correct dependency — Kenneth Clark, Nov 27 '14 at 07:31
The 'jboss-deployment-structure.xml' will be in the war if it is produced take a look at the following article **http://stackoverflow.com/questions/14581980/when-and-why-would-i-need-a-jboss-deployment-structure-xml-for-a-spring-applicat** — Kenneth Clark, Nov 27 '14 at 07:47
@KennethClark Yes. I removed 'commons-io-2.4.jar' from my WEB-INF/lib and added dependency in 'jboss-deployment-structure.xml' file, but exception occurred again. — MK Aftab, Nov 27 '14 at 08:05

score 0 · Accepted Answer · answered Nov 30 '14 at 07:44

0

I finally solved my problem. I moved 'commons-io-2.4.jar' and 'commons-fileupload-1.3.1.jar' files from 'my-ear.ear/my-web.war/WEB-INF/lib/' to 'my-ear.ear/lib'.

answered Nov 30 '14 at 07:44

MK Aftab

39
7

score 0 · Answer 2 · edited May 18 '17 at 10:32

In my case, the problem was that I was declaring the dependencies into a war maven project, so maven was copying the jar libs into WEBINF/lib.

I solved this issue by putting the dependencies declaration on another war dependent jar project pom, instead war project as i was doing:

myapp-project-web-api/: <- (war maven project)

pom.xml:

...
    <dependencies>

      <!-- File upload -->
        <!-- deleted commons-fileupload dependency>

        <!-- deleted commons-io dependency -->
...

myapp-project-web-api-components/:

pom.xml:

...
    <dependencies>

    <!-- File upload -->
      <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
      </dependency>

      <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
      </dependency>
...

NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream in uploading file with SpringMVC/Wildfly/CentOS

2 Answers2