getting error during javadoc

[Reshma Das]

I have 3 dir under suncertify. when i run javadoc from suncertify iam getting the follwoing error.
C:\developer\scjd\starting\suncertify>javadoc -private *
Loading source files for package client...
Loading source files for package db...
Loading source files for package server...
Constructing Javadoc information...
javadoc: No public or protected classes found to document.
1 error
pls help.
thanks