RFR: 8163946: java/lang/String/concat/WithSecurityManager.java fails after 8163878

[Claes Redestad]

Hi,

changing to use GetPropertyAction in MethodHandleImpl unexpectedly 
caused a nasty bootstrap issue. Moving the MAX_ARITY constant to 
MethodHandleStatics avoids the issue and might be sensible to do regardless.

bug: https://bugs.openjdk.java.net/browse/JDK-8163946
webrev: http://cr.openjdk.java.net/~redestad/8163946/webrev.01/

Thanks!

/Claes