When trying to add fields like Check Box, Radio Button, Number (Short), Number (Long), Text
Null Pointer Exception occurred. Hence unable to add fields in Step 2 in Partitioned Approval. Please find the attached screenshot and logs.

Steps to reproduce:
1. Create a approval profile of type “Partitioned Approval”
2. Click on Add Step button
3. Select check box or select any one from drop-down list and give some data in label text field.
Click Add Field button.