JMXAuthenticator (Java SE 26 & JDK 26)
Description: declaration: module: java.management, package: javax.management.remote, interface: JMXAuthenticator
Keywords: javax.management.remote.JMXAuthenticator interface

# Interface JMXAuthenticator

public interface JMXAuthenticator

Interface to define how remote credentials are converted into a JAAS Subject. This interface is used by the RMI Connector Server, and can be used by other connector servers.

The user-defined authenticator instance is passed to the connector server in the environment map as the value of the attribute `JMXConnectorServer.AUTHENTICATOR`. For connector servers that use only this authentication system, if this attribute is not present or its value is `null` then no user authentication will be performed and full access to the methods exported by the `MBeanServerConnection` object will be allowed.

If authentication is successful then an authenticated `subject` filled in with its associated `principals` is returned. Authorization checks will be then performed based on the given set of principals.

Since:
  1.5

- ## Method Summary

  Modifier and Type
  Method
  Description
  `Subject`
  `authenticate(Object credentials)`
  Authenticates the `MBeanServerConnection` client with the given client credentials.

- ## Method Details

  - ### authenticate

    Subject authenticate(Object credentials)

    Authenticates the `MBeanServerConnection` client with the given client credentials.

    Parameters:
      `credentials` - the user-defined credentials to be passed into the server in order to authenticate the user before creating the `MBeanServerConnection`. The actual type of this parameter, and whether it can be null, depends on the connector.
    Returns:
      the authenticated subject containing its associated principals.
    Throws:
      `SecurityException` - if the server cannot authenticate the user with the provided credentials.