How to Activating emergency user (Super Administrator User (sap*)) in JAVA Stack

Go to Config Tool -> click on the button “Switch to configuration edit mode”
Expand the tree :-
“Cluster_data -> Server -> cfg -> Services -> Propertysheet com.sap.security.core.ume.service”

When the “Super Administrator” parameter is activated to true and the password being reset, all other users will locked.
Set the parameters
ume.superadmin.activated = true
ume.superadmin.password = a new password


Restart the Java Cluster...

Logon as sap* and new password, correct the problem. then revert the change made to the parameterume.superadmin.activated to false and Restart the Java Cluster.