As a result, Cipher.getInstance("RSA/ECB/OAEPPadding") will return a no-such algorithm exception.

import java.io.*;
import java.security.*;
import javax.crypto.*;

public class template1 {

    public static void main(String args[]) throws Exception {
        Cipher cipher =
            Cipher.getInstance("RSA//OAEPPadding");
        System.out.println(cipher.getProvider());
    }
}

Andreas adds:

It appears "OAEPPadding" was added to RSACipher by 4923484 but this probably never worked correctly because the supported paddings in SunJCE were not updated.