OM extension Error

Content

Hi All,

 We are getting the below error when running the OM extension. We are trying to copy Order Notes EFF value from Original Order to the Return Order. Can you please advice.

Groovy Script :

import oracle.apps.scm.doo.common.extensions.ValidationException;
import oracle.apps.scm.doo.common.extensions.Message;
import java.util.logging.Level;

Long lineId = 0;
Long headerId = 0;
def lines = header.getAttribute("Lines");

while( lines.hasNext() )
      {
        def line = lines.next();
        String categoryCode = line.getAttribute("TransactionCategoryCode");
        if ("RETURN" != categoryCode) continue;
        def docRefs = line.getAttribute("DocumentReferences");
        lineId = 0;
        while(docRefs.hasNext() & lineId == 0)
              {
                def docRef = docRefs.next();
                String docRefType = docRef.getAttribute("DocumentReferenceType");