- Authorization Decision Endpoint
 - Support the `getSessionId()` method of the `AuthorizationDecisionHandlerSpi`
 interface, introduced in version 2.86 of authlete-java-jaxrs.
- Token Endpoint
 - Reflect the method signature change of the `tokenExchange(TokenResponse)`
 method in the `TokenRequestHandlerSpi` interface. The new signature is
 `tokenExchange(TokenResponse, Map<String, Object>)`, as updated in version
 2.86 of authlete-java-jaxrs.
 - Reflect the method signature change of the `jwtBearer(TokenResponse)`
 method in the `TokenRequestHandlerSpi` interface. The new signature is
 `jwtBearer(TokenResponse, Map<String, Object>)`, as updated in version
 2.86 of authlete-java-jaxrs.
 - Implement the `nativeSso(TokenResponse, Map<String, Object>)` method in
 the `TokenRequestHandlerSpi` interface, introduced in version 2.86 of
 authlete-java-jaxrs.
- Native SSO
 - Add the `NativeSsoProcessor` class, which is an implementation of the
 `nativeSso(TokenResponse, Map<String, Object>)` method in the
 `TokenRequestHandlerSpi` interface.
 - Add the `SessionTracker` class, which tracks active sessions.
 - Add the `DeviceSecret` class, representing the concept of a
 "Device Secret" as introduced in the "OpenID Connect Native SSO for
 Mobile Apps 1.0" specification ("Native SSO").
 - Add the `DeviceSecretManager` class, which manages `DeviceSecret`
 instances.
- `pom.xml`
 - Update the version of authlete-java-common from 4.12 to 4.19.
 - Update the version of authlete-java-jaxrs from 2.80 to 2.86.
- `web.xml`
 - Add `com.authlete.jaxrs.server.core.SessionTracker` as a listener class.