RFR 8242811: AlgorithmId::getDefaultAlgorithmParameterSpec returns incompatible PSSParameterSpec for an RSASSA-PSS key

[Weijun Wang]

Please take a review at

   https://cr.openjdk.java.net/~weijun/8242811/webrev.00/

The AlgorithmId::getDefaultAlgorithmParameterSpec method is used internally to 
retrieve a default AlgorithmParameterSpec to initialize a Signature, mainly be 
keytool.

The test shows a case where it can be called.

Thanks,
Max