If the password of the DevTest built-in user id admin is lost, there is no way to recover it, but you can reset it.
Is there a way to recover the DevTest password for built-in user id admin as opposed to changing it?
We cannot recover it, only reset it to its original value.
Execute DEVTEST_HOME\bin\resetadminuser.bat --reset on Windows.
Execute DEVTEST_HOME/bin/resetadminuser.sh --reset on Linux.
This will reset to the original value of admin.
You can change the password values of the built-in accounts from Identity Access Manager (IAM).