FULL PRODUCT VERSION :


A DESCRIPTION OF THE PROBLEM :
We use Nashorn to run the zxcvb javascript, which is a password strength checker.
We do that to perform the same serverside validation as in the webpage.
There is a sample repository at
https://github.com/bripkens/nashorn-pw-check-example
which contains a unit test https://github.com/bripkens/nashorn-pw-check-example/blob/master/src/test/java/de/codecentric/StrengthCheckerTest.java
This unit test takes about 7 seconds to complete when run with a java 8 u 20.

Running it with 8u40 or 9ea spins forever in internal Nashorn code.

While it is possible tht this behaviour is triggered by the zxcvb library, as a user, I consider it to be a regression when it worked in u20 and no longer works in u40.

REGRESSION. Last worked in version 8u40

ADDITIONAL REGRESSION INFORMATION:
worked in u20, does NOT work in u40 (the select box does not allow this combination)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
clone the repo. run maven install with the desired jvms, or run mvn eclipse:eclipse and try to run from eclipse with the given jdks.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
unit tests pass.
ACTUAL -
spins forever

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
https://github.com/bripkens/nashorn-pw-check-example/
---------- END SOURCE ----------