Hi @gaurav.mahajan,

The error you are seeing may be a result of outdated dictionary files within the ADS you are connected to. I would first try on the step by step EMA Java tutorials (Step 2) that uses the default operation model: API_DISPATCH and check your results. There shouldn't be a different between the 2 operation models. If you suspect it could be the ADS dictionaries are out of date, you can try to use local dictionaries. For this, you will have to utilize a configuration file which includes a Dictionary Group which allows you to use local dictionary files. Local dictionary files are included within your EMA package within the subdirectory: Ema/etc.

Just to make sure were in sync in terms of what I did, I took the above Step 2 tutorial and modified it to use the USER_DISPATCH operation model. Sections I changed:

consumer = EmaFactory.createOmmConsumer(
	config.host("elektron:14002")
	      .username("user")
              .operationModel(OmmConsumerConfig.OperationModel.USER_DISPATCH)
	);
...
// Instead of a sleep, I did this:
long startTime = System.currentTimeMillis();
while (startTime + 60000 > System.currentTimeMillis())
    consumer.dispatch(10);

After running this, I received the expected results.

Try some of these suggestions and let us know what you find.

thanks.

Seems like you are using an old data dictionary. Can you verify that it is latest, or if you are downloading from TREP, it is the latest version.

This problem should not be related with EMA dispatch mode.

Thanks much @nick.zincone.1 and @Gurpreet.! That helps, i was using old dictionary.