JDK 9 RFR of JDK-6961865: javadoc for Boolean.valueOf(String) with null argument not clearly specified

[joe darcy]

Hello,

Please review these spec clarifications for java.lang.Boolean:

     JDK-6961865: javadoc for Boolean.valueOf(String) with null argument 
not clearly specified

     http://cr.openjdk.java.net/~darcy/6961865.0/

Thanks,

-Joe