The following classes are not available in Java SE 11:
com.sun.awt.AWTUtilitiescom.sun.security.auth.PolicyFilecom.sun.security.auth.SolarisNumericGroupPrincipalcom.sun.security.auth.SolarisNumericUserPrincipalcom.sun.security.auth.SolarisPrincipalcom.sun.security.auth.X500Principalcom.sun.security.auth.callback.DialogCallbackHandlercom.sun.security.auth.module.SolarisLoginModulecom.sun.security.auth.module.SolarisSystem
In addition, the com.sun.tracing APIs have been removed.
For more information on the removed classes, see Java 11 Removed Features and Options, Java 10 Removed Features and Options, and Java 9 Removed Features and Options