Need resolution fo Nullpointer Exception

Question

Hi
I am using Dynamic configuration for getting file name
Error:
RuntimeException in Message-Mapping transformation: Exception:[java.lang.NullPointerException] in class com.sap.xi.tf._I813_Proxy_2_EModMCS_MM_ method DateStamp$[Test, com.sap.aii.mappingtool.tf3.rt.Context@78237823]
I am using following java code but when I am testing the same in mapping.
// get the dynamic values from the container object
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
// create a key to access the Filename parameter
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File","FileName");
//below you access the file name from header if it was set in the sender file channel
//String filename= conf.get(key);
String fileName = IFRECID; // date stamp is an input field to the UDF
// Here you set the fileName(ur datestamp) in the Header of the message
conf.put(key, fileName);
return fileName;
Please help ! ! !
Edited by: ria sen on Jul 28, 2008 3:18 AM

Answer 1

Hi Ria,
           Please note that as far as the code is concerned .There are some errors in it.
String fileName = IFRECID; // date stamp is an input field to the UDF
This should be
String fileName = "IFRECID";
In java when u r declaring the String literals the correct syntax must be used.
Please check the message type attributes in the file adapter whether it is perfectly done or not.
Finally do the End to End testing rather than standalone testing in the Message mapping tab.
Thanks
Arijit