//JavaMail::Providers.java
//author:ZhangHongbin 
//This program is protected by copyright laws.
//List supported protocol providers.
import java.util.*;
import java.io.*;
import javax.mail.*;
public class Providers
{
	public static void main(String[] args) throws Exception
	{	
		Properties props=System.getProperties();
		Session session=Session.getInstance(props,null);
		Provider[] providers =session.getProviders();
		for (int i=0; i <providers.length;++i)
		{
			Provider provider =providers[i];
			System.out.println("provider= "+ provider);
			System.out.println("getProtocol()= "+provider.getProtocol());
			System.out.println("getClassName()= "+provider.getClassName());
			System.out.println("getVendor()= "+provider.getVendor());
			System.out.println("getVersion()= "+provider.getVersion());
			System.out.println("---------------- ");
		}
    }
}