RTC API IIteration.getIterationType always returns null

Hi,

I had created a iteration type and set the iteration type to the Iteration through web client. When i try retrieving the same from RTC API it returns null. How to get the IterationType of an iteration.

Please let me know if the code i am using is correct.
IIterationHandle[] iterations = developmentLine.getIterations();
IIteration iteration = auditableClient.resolveAuditable(iterations[0] , ItemProfile.ITERATION_DEFAULT, monitor);
IIterationTypeHandle iterationTypehandel = iteration.getIterationType();

iterationTypehandel is always null even when iterationtype is set.