Getting ClassNotFoundException in JBoss Portal 6.1

Issue

• Getting below exception.

Caused by: java.lang.ClassNotFoundException: org.apache.commons.io.output.DeferredFileOutputStream from [Module "org.apache.commons.fileupload:main" from local module loader @379e6292 (finder: local module finder @7f597bc4 (roots: /$JPP_HOME/modules,/$JPP_HOME/modules/system/layers/gatein,/$JPP_HOME/modules/system/layers/base))]
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:196) [jboss-modules.jar:1.2.2.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:444) [jboss-modules.jar:1.2.2.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:432) [jboss-modules.jar:1.2.2.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:374) [jboss-modules.jar:1.2.2.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:119) [jboss-modules.jar:1.2.2.Final-redhat-1]
    ... 139 more

• Encountering NoClassDefFoundError even when jar file is included inJPP 6