RFR(S) 8030221: Checking for anonymous class should check for NULL as well as potential nesting

[harold seigel]

Hi,

Please review this fix for JDK-8030221.  The fix makes sure that, if the 
specified host class for a VM anonymous is another anonymous class, that 
the actual host class is the specified host class's host class.  For 
example, if named class N is the host class for anonymous class A1, and 
A1 is the specified host class for anonymous class A2, then the actual 
host class for A2 will be named class N.

JBS Bug: https://bugs.openjdk.java.net/browse/JDK-8030221

Open Webrev: http://cr.openjdk.java.net/~hseigel/bug_8030221/

The fix was tested with the JCK Lang and VM tests, the hotpot, and 
java/lang, java/util and other JTreg tests, the NSK quick tests, and 
with the RBT runtime nightly tests.

Thanks, Harold