Hi Xuelei, Could you please take a look at this patch?
It enables SHA224-based signature algorithms on Windows since they should be provided not only by SunMSCAPI provider. Please see details in the bug description.
The test works fine on all supported platforms. Bug: https://bugs.openjdk.java.net/browse/JDK-8182143 Webrev: http://cr.openjdk.java.net/~asmotrak/8182143/webrev.00/ Artem
