Not able to create Cipher object

When I am creating the following cipher object it is running successfully.

Cipher.getInstance("RSA/ECB/OAEPWithSHA1AndMGF1Padding");

I have to do RSA OAEP encryption which of the cipher object should be used.

Cipher.getInstance("RSA/ECB/OAEPWithSHA1AndMGF1Padding");(runing in SunJCE version 5.0)

Cipher.getInstance("RSA/None/OAEPWithSHA1AndMGF1Padding");

[386 byte] By [buddy_boya] at [2007-11-27 8:31:24]