ADDITIONAL SYSTEM INFORMATION :
building with
java version "9.0.4"
Java(TM) SE Runtime Environment (build 9.0.4+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.4+11, mixed mode)


AME="Ubuntu"
VERSION="16.04.4 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.4 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial


A DESCRIPTION OF THE PROBLEM :
Currently the regular expression for checking the version string being set via --with-version-string=<string> in common/autoconf/jdk-version.m4 Line:89 doesn't match the jep 223 documentation.

In the documentation the $PRE can contain numbers whereas the implementation doesn't allow numbers
currently the regular expression is:

^([0-9]+)(\.([0-9]+))?(\.([0-9]+))?(\.([0-9]+))?(-([a-zA-Z]+))?((\+)([0-9]+)?(-([-a-zA-Z0-9.]+))?)?$

to match jep 223 it should be:

^([0-9]+)(\.([0-9]+))?(\.([0-9]+))?(\.([0-9]+))?(-([a-zA-Z0-9]+))?((\+)([0-9]+)?(-([-a-zA-Z0-9.]+))?)?$



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
have a number in the $PRE part of the version string

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
numbers in $PRE should be allowed, if they are to match jep 223
ACTUAL -
numbers in $PRE fails the build

CUSTOMER SUBMITTED WORKAROUND :
change regex in common/autoconf/jdk-version.m4 Line:89 to allow numbers in $PRE

FREQUENCY : always