Unable to start Java User Interface 10.0.8 HF4

Document ID : KB000088011
Last Modified Date : 14/04/2018
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Error Message :
U4002598 Error = ' in main [AWT-EventQueue-0] : DefaultUncaughtExceptionHandler'

 The User Interface packaged with the Automation Engine (AE) Image 10.0.8  HF4 + 10.0.8 HF5  cannot be started as usual.

When the UCDJ.EXE is executed only the splash screen appears and disappears but no login window appears.

In the log the above error is recorded.

This applies to the product version: User Interface 10.0.8+hf.4.build.5687.
OS: Windows
Cause type:
Root Cause: The Java UserInterface could not be started because one of its files was incorrectly named.
Update to the fix version listed below or a newer version if available.

Fix Status: Released

Fix Version(s):
Component(s): UserInterface Java

Automation Engine 10.0.8 HF6 - Available
Additional Information:
Workaround :
To start the User Interface the file "uc4LookAndFeel.jar" has to be renamed to "LookAndFeel.jar". After the rename the UI can be started as usual.