Blank screen when access web admin on Payara

When you config Realm on Payara, sometimes it add default-principal="admin" into tag <security service> look like

<security-service default-principal-password="yourpasswordherer" default-principal="admin">


remove default-principal="admin" and issue will be gone

correct line:
<security-service default-principal-password="yourpasswordherer">

Good luck