how to prevent deprecation warning of import?

[Weijun Wang]

The com.sun.security.auth.SolarisPrincipal is a deprecated class, 
another class com.sun.security.auth.module.SolarisLoginModule 
referencing it is also deprecated. Because of the "import 
com.sun.security.auth.SolarisPrincipal" line in the latter class, 
compiling it shows a warning. What is the best way to let it disappear?

The only solution I know is to remove the import line and always use the 
full name.

Thanks
Max