spring security fails checking password

>PROBLEM

The security layer fails to authenticate an user without any apparent reason.


>SOLUTION
There are many possible reasons.
Among other possibilities, check:

1. Fields' length checking.
Check the fields' lengths against the model class.
They must match.

2. Check the password's field configuration.
Usually, encryptors generates encrypted strings with length=64, so the database shall provide compatible value.


>ENV

spring boot 1.5.4.RELEASE

java 8

maven

eclipse