Principal.| Class | Description | 
|---|---|
| LdapPrincipal | A principal identified by a distinguished name as specified by RFC 2253. | 
| NTDomainPrincipal | This class implements the  Principalinterface and represents the name of the Windows NT domain into which the user authenticated. | 
| NTNumericCredential | This class abstracts an NT security token and provides a mechanism to do same-process security impersonation. | 
| NTSid | This class implements the  Principalinterface and represents information about a Windows NT user, group or realm. | 
| NTSidDomainPrincipal | This class extends  NTSidand represents a Windows NT user's domain SID. | 
| NTSidGroupPrincipal | This class extends  NTSidand represents one of the groups to which a Windows NT user belongs. | 
| NTSidPrimaryGroupPrincipal | This class extends  NTSidand represents a Windows NT user's primary group SID. | 
| NTSidUserPrincipal | This class extends  NTSidand represents a Windows NT user's SID. | 
| NTUserPrincipal | This class implements the  Principalinterface and represents a Windows NT user. | 
| PrincipalComparator | An object that implements the  java.security.Principalinterface typically also implements this interface to provide a means for comparing that object to a specifiedSubject. | 
| UnixNumericGroupPrincipal | This class implements the  Principalinterface and represents a user's Unix group identification number (GID). | 
| UnixNumericUserPrincipal | This class implements the  Principalinterface and represents a user's Unix identification number (UID). | 
| UnixPrincipal | This class implements the  Principalinterface and represents a Unix user. | 
| UserPrincipal | A user principal identified by a username or account name. | 
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Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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    https://docs.oracle.com/en/java/javase/21/docs/api/jdk.security.auth/com/sun/security/auth/package-summary.html