Play2.11 Play can not find the model class but I can run pure JPA Juit test properly, Please come to help, thanks

Play2.11 Play can not find the model class but I can run pure JPA Juit
test properly, Please come to help, thanks

I am using Play2.11 Java and JPA2.0 Hibernate implementation and mysql
I can run the Junit test case properly to run CURD operation on the models
which put a persistence.xml under test/meat-inf, but when run play to CURD
from the web page, it shows can not find the models.* class. After some
time digging still do not have a clue. please help to check, thanks a lot
conf/meta-inf/persistence.xml:
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="DEVUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>dev</non-jta-data-source>
<class>models.Account</class>
<properties>
<property name="hibernate.dialect"
value="org.hibernate.dialect.MySQLDialect" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="false" />
</properties>
</persistence-unit>
test/meta-inf/persistence.xml
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="DEVUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>models.Account</class>
<properties>
<property name="hibernate.dialect"
value="org.hibernate.dialect.MySQLDialect" />
<property name="hibernate.connection.driver_class"
value="com.mysql.jdbc.Driver" />
<property name="hibernate.connection.username" value="***" />
<property name="hibernate.connection.password" value="***" />
<property name="hibernate.connection.url"
value="jdbc:mysql://****.net:3306/dev?characterEncoding=UTF-8" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="false" />
</properties>
</persistence-unit>
Only one line different the <non-jta-data-source>dev</non-jta-data-source>
conf/application.conf
# This is the main configuration file for the application.
# ~~~~~
# Secret key
# ~~~~~
# The secret key is used to secure cryptographics functions.
# If you deploy your application to several instances be sure to use the
same key!
application.secret="Qk5y/1b1;]>p=yo6?/FnmQR4F@W2lGYWfJI>e4oBs2D0nahNl>Y40y1A:P[uc;RJ"
# The application languages
# ~~~~~
application.langs="en"
# Global object class
# ~~~~~
# Define the Global object class for this application.
# Default to Global in the root package.
#application.global=Global
#ehcacheplugin=disabled
# Router
# ~~~~~
# Define the Router object to use for this application.
# This router will be looked up first when the application is starting up,
# so make sure this is the entry point.
# Furthermore, it's assumed your route file is named properly.
# So for an application router like `conf/my.application.Router`,
# you may need to define a router file `my.application.routes`.
# Default to Routes in the root package (and `conf/routes`)
# application.router=my.application.Routes
# Database configuration
# ~~~~~
# You can declare as many datasources as you want.
# By convention, the default datasource is named `default`
#
db.default.driver=com.mysql.jdbc.Driver
db.default.url="jdbc:mysql://****.net/dev?characterEncoding=UTF-8"
db.default.user=***
db.default.password=****
db.default.jndiName=dev
#
# You can expose this datasource via JNDI if needed (Useful for JPA)
# db.default.jndiName=DefaultDS
# Evolutions
# ~~~~~
# You can disable evolutions if needed
evolutionplugin=disabled
# Logger
# ~~~~~
# You can also configure logback (http://logback.qos.ch/), by providing a
logger.xml file in the conf directory .
# Root logger:
logger.root=ERROR
# Logger used by the framework:
logger.play=INFO
# Logger provided to your application:
logger.application=DEBUG