Can't get ECDSA to work (Java 5)

Hi all,
I'm trying to create digital signatures w/ ECDSA using Java 5. Although the JCA doc promises support for the ECDSA digital signature algorithm, an attempt to aquire a signature object
Signature signature = Signature.getInstance("ECDSA");
results in an exception
java.security.NoSuchAlgorithmException: ECDSA Signature not available
Is there a special setup needed in order to get ECDSA to work?
Please note: I know it will work w/ the BouncyCastleProvider but I intend to test the Java built-in provider.
regards,
javaracer.

The standard name is reserved in Appendix A of the JCE reference guide. Where did you see that the Sun JDK actually has support for it?

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