3383755 - Does a copy order fail to interface to B&I when there are null entries for material group in the CommodityExportMap.csv file?

Copy order fails to interface to B&I with the below stack trace. 

Caused by: java.lang.NullPointerException
at ariba.purchasing.core.CXMLToPOLineItemComponent.updateCEMEWithMatchingPCCC(CXMLToPOLineItemComponent.java:449)
at ariba.purchasing.core.CXMLToPOLineItemComponent.processClassificationCode(CXMLToPOLineItemComponent.java:419)
at sun.reflect.GeneratedMethodAccessor467.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at ariba.util.fieldvalue.ReflectionMethodGetter.invokeGetMethod(ReflectionMethodGetter.java:106)
at ariba.util.fieldvalue.ReflectionMethodGetter.getValue(ReflectionMethodGetter.java:121)
at ariba.util.fieldvalue.FieldValue_Object.getFieldValuePrimitive(FieldValue_Object.java:164)
at ariba.util.fieldvalue.FieldValue_Object.getFieldValue(FieldValue_Object.java:206)
at ariba.util.fieldvalue.FieldPath.getFieldValue(FieldPath.java:238)
at ariba.ui.aribaweb.core.AWKeyPathBinding.value(AWBinding.java:156)
at ariba.encoder.xml.AWMethodInvocation_AXDecoding.invokeOperation(AWMethodInvocation_AXDecoding.java:24)
at ariba.encoder.xml.AXDecoder.invokeOperationOnElement(AXDecoder.java:520)
... 73 more

KBA , BNS-ARI-PUR-PO , Purchase Orders , BNS-ARI-CP-CORE-ACCT , Core Accounting , Problem