Getting java.lang.NullPointerException Starting Workstation

Document ID : KB000007456
Last Modified Date : 14/02/2018
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Issue:

Start Workstation and getting this error:

java.lang.NullPointerException
If you continue, data will not be saved to the database. Do you want to continue?

Environment:
All currently supported DevTest releases and platforms.
Cause:

Permissions issue on the DEVTEST_HOME folder and subfolders.

Resolution:

Change permissions on DEVTEST_HOME folder to Full Control and Modify.