Is HFSJ error?

[pramoth suwanpech]

Is HFSJ error? page 632
in SERVLET-SPECIFICATION section.
book say

  
<security-role>
   <role-name>Admin</role-name>
   <role-name>Member</role-name>
   <role-name>Guest</role-name>
<security-role>

I found this tag is error on Netbeans IDE and IntelliJ.Is the security-role can have one role-name element?

[Christophe Verré]

According to the spec, only one role-name per security-role

[fred rosenberger]

this is noted in the eratta on the O'reily page. go here, and follow the "unconfirmed" link.