NoClassDefFoundError loading class with quartz job

Issue

I am getting following error while trying to load the above class.

I verified and the class is available in ear under jar

bcprov-jdk15-138.jar at location \jboss-as\server\default\deploy\kr.ear\lib\bcprov-jdk15-138.jar.

The same ear running fine in our qa and stage environment. This  error noticed only in production.

java.lang.RuntimeException: java.lang.NoClassDefFoundError: org/bouncycastle/jce/provider/BouncyCastleProvider
at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:174)
at org.jboss.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:44)

Please find the attached server.log.

As a note, the code that is having the NoClassDefFound exception is being fired as a scheduled job through Quartz.