A script reports the following:

## packages for jdk.security.auth: com.sun.security.auth com.sun.security.auth.callback com.sun.security.auth.login com.sun.security.auth.module
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTDomainPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTNumericCredential.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTSid.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTSidDomainPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTSidGroupPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTSidPrimaryGroupPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTSidUserPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/NTUserPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/PrincipalComparator.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/UnixNumericGroupPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/UnixNumericUserPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/UnixPrincipal.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/callback/TextCallbackHandler.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/login/ConfigFile.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/module/JndiLoginModule.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/module/KeyStoreLoginModule.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/module/Krb5LoginModule.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/module/NTLoginModule.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/module/NTSystem.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/module/UnixLoginModule.java
no @since in open/src/jdk.security.auth/share/classes/com/sun/security/auth/module/UnixSystem.java
found: 3
missing: 21