RFR 8172422: jarsigner needs to understand -?

[Weijun Wang]

Please review the code change at

   http://cr.openjdk.java.net/~weijun/8172529/webrev.02
The validator is updated to be a PKIXValidator of the 
Validator.VAR_CODE_SIGNING variant. In order to have the same output 
message and exit code as before, the ValidatorException thrown when 
validation fails is suppressed when there are existing error flags for 
several reasons.

*jigsaw-dev*: The following change is made in java.base/module-info.java:

+    exports sun.security.validator to
+        jdk.jartool;

Thanks
Max