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IllegalArgumentException while creating new UI control



IllegalArgumentException while creating a custom DateTime format with a new UI control.

Error Messages

Cannot create format "Date-Short-Custom-YYYY", default format is used
java.lang.IllegalArgumentException: Illegal pattern character 't'

Steps to Reproduce

  1. Log in to the application
  2. Select one of the out-of-the-box formats on pxDateTime control
  3. Run Preview

Root Cause

A defect in Pegasystems’ code or rules. The UI control did not pass the right format to the Engine formatter.


Apply HFix-54562.


Published August 19, 2019 - Updated October 8, 2020

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