RFR (M): 8142510: rev2: -XX:+PrintFlagsRanges should print default range value for those flags that have constraint and an implicit range.

[Gerard Ziemski]

hi all,

This is rev2 of the fix incorporating feedback from Dmitry:

- re-use "CommandLineFlagConstraintList::find()"

Please review this enhancement to Command Line Options Validation JEP-245, which prints default ranges for those flags, that only have constraints (ie. no range, but a constraint, implies default range)

With this fix we’ll be able to include more flags in test/runtime/CommandLine/OptionsValidation test.


bug https://bugs.openjdk.java.net/browse/JDK-8142510
webrev http://cr.openjdk.java.net/~gziemski/8142510_rev2

tested with JPRT hotspot, RBT hotspot/test/runtime and local test/runtime/CommandLine/OptionsValidation


cheers