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From Darjan Oblak <>
Subject Tomee 7 validation provider configuration and performance issues
Date Wed, 09 Nov 2016 09:29:01 GMT

recently we migrated our app from tomee 1.7 to tomee 7.0.1. Surprisingly
execution time of hundreds of integration tests became 30 % longer.
Investigation with a profiler revealed the org.apache.bval seems to be the

Obviously we even had the application misconfigured even in tomee 1.7 where
bval is used used instead of hibernate validator provided through pom.xml.
The same remains with tomee 7.

I have two questions:

1. How exactly can I configure tomee 7 to use hibernate validator instead
of apache bval. I tried including META-INF/validation.xml and specifying
got: org.apache.openejb.assembler.classic.ValidatorBuilder getConfig
WARNING: Unable create  validator factory with provider
org.hibernate.validator.HibernateValidator (Unable to find provider: class
org.hibernate.validator.HibernateValidator). Default one will be used.

2. Are you aware of any performance issues with the bval version provided
by tomee 7? Isn't validator supposed to cache annotations somehow, not
inspecting them over and over again?

Here are two profiler screenshots for a dummy test of app startup together
with a test doing 100k persist operations of a simple object with even no
validation used. I know hibernate is not meant to be used in such way for
batch inserts, I used it just as a proof of concept. The jdbc operations
are identical for both versions, just bval processing differs (in tomee7
being ~2.5x slower for the example provided).

tomee 1.7:

[image: Inline image 1]

tomee 7:
[image: Inline image 2]

Thank you

Best Regards,
Darjan Oblak

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