[9] review request for 6977937: The SunJCE PBKDF2KeyImpl is requiring the MAC instance also be from SunJCE.

[Vincent Ryan]

Hello,

Please review the following fix to remove the requirement for the Mac algorithm used by a PBKDF2 algorithm to be supplied by the SunJCE provider.
The SunJCE provider is still preferred (for compatibility with previous releases and for performance reasons) but it is no longer required.
The com.sun.crypto.provider.PBKDF2KeyImpl class first searches SunJCE for the required Mac algorithm but fails over to searching the
other installed JCE providers too. 

Bug: https://bugs.openjdk.java.net/browse/JDK-6977937
Webrev: http://cr.openjdk.java.net/~vinnie/6977937/webrev.00/

Thanks.