[RFR 8u] 8220513: Wrapper Key may get deleted when closing sessions in SunPKCS11 crypto provider

[Martin Balao]

Hi,

I'd like to request a review for the JDK-8 backport of 8220513 [1]:

http://cr.openjdk.java.net/~mbalao/webrevs/8220513/8220513.webrev.jdk8u.jdk.00/

JDK patch applies cleanly, except for P11Key.java part (which requires
some reordering) and paths.

Note: this patch is part of the SunPKCS11 memory leak fix sequence
(6946830 -> 6913047 -> 8216597 -> 8220513). 6946830 and 6913047 JDK-8
backports have been pushed already.

Thanks,
Martin.-

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[1] - https://bugs.openjdk.java.net/browse/JDK-8220513