Values in a DynamicConfiguration must not be null

Question

In File to RFC to File synchronous method without BPM , i need to populate the file name for the receiver file dynamically.
So i have used UDF in RFC to File message mapping.
Z_RFC                                               MT_RCV_FILE
FILENAME                                          FILENAME
ITAB_OUT----
ITAB_OUT
   item        -
item
      STR1   -
STR
Created a  UDF for FILENAME as below:
FILENAME -
> UDF -
> FILENAME
and coded as below:
try{
String FILENAME  =  " ";
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File","FILENAME");
FILENAME = conf.get(key);
conf.put(key, FILENAME);
return FILENAME;
catch(Exception e)
     String exception = e.toString();
      return exception;
when i test the mapping it shows an error :java.lang.NullPointerException
and while doing a full test it shows :
java.lang.IllegalArgumentException: Values in a DynamicConfiguration must not be null in SXMB_MONI
can anybody guide me to solve this error.

Answer 1

Hi Abhisek,
I have changed it to FileName and when i do a end-to-end testing it shows
Error: com.sap.engine.interfaces.messaging.api.exception.MessagingException: java.lang.Exception: Exception in XML Parser (format problem?):'java.lang.Exception: Message processing failed in XML parser: 'java.lang.Exception: Consistency error: more fields found in XML structure than specified in conversion parameters! (Value '20000000Test2222222220      Pass1')', probably configuration error in file adapter (XML parser error)'
The strucute of receiver File:
MT_RCV_FILE
     FILENAME          0 .....1
    ITAB_OUT           0......1
              item            0.....unbounded
                  STR1      0......1
In the  receiver CC i have given the following parameters:
Target directory : /home/ftpusr/test/out
File name scheme : *
Content Conversion
ITAB_OUT.fieldFixedLengths  30,255
ITAB_OUT.endSeparator : 'nl'
item.addHeaderLine  : 0
item.fieldFixedLengths : 255
item.endSeparator : 'nl'
where could be the problem?