Can you please let me know the EL expression to be used to check if username is not in a userlist

Summary:

Hi All,

Can you please let me know how to check the condition where a username is not in a list of usernames.

for eg: i tried the following to check users in a list of users, it worked

#{securityContext.userName=='100000' or securityContext.userName=='111111' or securityContext.userName=='20000' or securityContext.userName=='222222' or securityContext.userName=='300000'}

Now I need to check the condition where username not equal to the list of usernames.

Please advice

Thanks,

Asha Jennifer

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