About sun.security.tools and sun.security.x509!

[bbskill]

Hi, all,

I am using sun.security.tools.KeyTool.main class to generate keystore 
and using sun.security.x509 package to control the X509Certificate in my 
application.

I am just wondering whether gcj does support these sun's 
implementations, or is there any free implementation open source project 
uesed to compile my application.

Additionally, I am using gcj4.1,

Thanks for any help.