RFR: [CSR] JDK-8221936: Improvements to SunJCE implementation of PBES2 Parameters

[Jamil Nimeh]

Hello all,

This CSR covers some improvements and behavioral changes specifically to 
the SunJCE implementation of PBES2-based AlgorithmParameters.  The 
original bug, JDK-8076999, was partially fixed by JDK-8202837 and the 
remaining issue to fix involves expanding the accepted PRFs and 
encryption schemes when initializing using DER-encoding.  Working on 
that issue brought about some additional behavioral improvements which 
are documented in the CSR below.

https://bugs.openjdk.java.net/browse/JDK-8221936

Thank you,
--Jamil