modify for null pointer exception

git-svn-id: http://15.206.35.175/svn/proteus/business-java/trunk@95782 ce508802-f39f-4f6c-b175-0d175dae99d5

webitm-mfg/ibase/webitm/ejb/mfg/MrpWizPrsSaveBean.java

@@ -176,11 +176,25 @@ public class MrpWizPrsSaveBean
 							
 							if("prev_item_worder".equalsIgnoreCase( detail4Node.getNodeName()))
 							{
-								prevItemWorder = detail4List.item(cntr).getFirstChild().getNodeValue();
+								if(detail4List.item(cntr).getFirstChild()!=null)
+								{
+									prevItemWorder = detail4List.item(cntr).getFirstChild().getNodeValue();
+								}
+								else
+								{
+									prevItemWorder="";
+								}
 							}
 							if("previous_item".equalsIgnoreCase( detail4Node.getNodeName()))
 							{
-								previousItem = detail4List.item(cntr).getFirstChild().getNodeValue();
+								if(detail4List.item(cntr).getFirstChild()!=null)
+								{
+									previousItem = detail4List.item(cntr).getFirstChild().getNodeValue();
+								}
+								else
+								{
+									previousItem = "";
+								}
 							}
 							
 						}