Build fails in Java 9+

[peter-lawrey]

With Java 9+ the build fails with the following?

[INFO] -------------------------------------------------------------
[WARNING] COMPILATION WARNING :
[INFO] -------------------------------------------------------------
[WARNING] bootstrap class path not set in conjunction with -source 8
[INFO] 1 warning
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] warnings found and -Werror specified
[INFO] 1 error
[INFO] -------------------------------------------------------------

[RobAustin]

I'm running this with Java 11 and don't see an issue

[RobAustin]

also If I do a:
$mvn help:effective-pom

i dont see any mention of

-Werror