RFR: 8153948: sun/security/mscapi/ShortRSAKey1024.sh fails with "Field length overflow"

[Ivan Gerasimov]

Hello!

The mentioned test was seen failing on a machine, where the keystore 
contains a lot of certificates because they overflowed the maximum 
allowed list of authorities in the CertificateRequest TLS message.
To make the test more robust, it is proposed to create a custom 
TrustManager, which will filter out all the certificates except the one 
really used in the test.

BUGURL: https://bugs.openjdk.java.net/browse/JDK-8153948
WEBREV: http://cr.openjdk.java.net/~igerasim/8153948/01/webrev/

Would you please help review this fix?

With kind regard,
Ivan