public static PlanVersionNotFoundException planVersionNotFoundException(String planId, String version) {
        return new PlanVersionNotFoundException(Messages.i18n.format("PlanVersionDoesNotExist", planId, version)); //$NON-NLS-1$
    }
Creates an exception from an plan id and version.
@param planId the plan id
@param version the version id
@return the exception
manager/api/exceptions/src/main/java/io/apiman/manager/api/rest/exceptions/util/ExceptionFactory.java