My company have a custom Web application built on Spring 3.0.5.RELEASE, Hibernate Core 3.6.3.Final, Hibernate search 3.4.0.Final, Hibernate validator 4.1.0.Final, Aspectjrt 1.6.2. We had all the integration test running successful with maven and web application working fine.
I wanted to upgrade the libraries to Spring 3.1.2.RELEASE, Hibernate Core 4.1.6.Final, Hibernate search 4.1.1.Final, Hibernate validator 4.3.0.Final.
Had to do some changes due to classes deprecation/changes. No changes in the configuration overall. Now when I run the Integration tests I get the following error.

java.lang.IllegalArgumentException: Unknown entity: xx.model.common.Role
at org.hibernate.ejb.AbstractEntityManagerImpl.persis t(AbstractEntityManagerImpl.java:868)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.orm.jpa.SharedEntityManagerCre ator$SharedEntityManagerInvocationHandler.invoke(S haredEntityManagerCreator.java:240)
at $Proxy39.persist(Unknown Source)
at xx.dao.jpa.GenericJpaDao.persist(GenericJpaDao.jav a:55)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoi npointUsingReflection(AopUtils.java:319)
at org.springframework.aop.framework.ReflectiveMethod Invocation.invokeJoinpoint(ReflectiveMethodInvocat ion.java:183)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :150)
at org.springframework.transaction.interceptor.Transa ctionInterceptor.invoke(TransactionInterceptor.jav a:110)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :172)
at org.springframework.aop.framework.JdkDynamicAopPro xy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy41.persist(Unknown Source)
at xx.model.AbstractPersistentEntity.persist_aroundBo dy20(AbstractPersistentEntity.java:229)
at xx.model.AbstractPersistentEntity.persist_aroundBo dy21$advice(AbstractPersistentEntity.java:51)
at xx.model.AbstractPersistentEntity.persist(Abstract PersistentEntity.java:1)
at xx.model.AbstractPersistentEntity.persist_aroundBo dy10(AbstractPersistentEntity.java:159)
at xx.model.AbstractPersistentEntity.persist_aroundBo dy11$advice(AbstractPersistentEntity.java:51)
at xx.model.AbstractPersistentEntity.persist(Abstract PersistentEntity.java:159)
at xx.util.dataload.AbstractDevDataLoader.persist(Abs tractDevDataLoader.java:88)
at xx.util.dataload.AbstractDevDataLoader.persist(Abs tractDevDataLoader.java:59)
at xx.util.dataload.RolePermissionsDevDataLoader.crea teDefaultSystemAdminRole(RolePermissionsDevDataLoa der.java:251)
at xx.util.dataload.RolePermissionsDevDataLoader.crea teRoles(RolePermissionsDevDataLoader.java:95)
at xx.util.dataload.RolePermissionsDevDataLoader.doLo adSeedData(RolePermissionsDevDataLoader.java:88)
at xx.util.dataload.CommonDevDataLoader.doLoadSeedDat a(CommonDevDataLoader.java:94)
at xx.util.dataload.AbstractDevDataLoader.loadData(Ab stractDevDataLoader.java:40)
at xx.model.company.CompanyLocationIntTest.onSetUpInT ransaction(CompanyLocationIntTest.java:25)
at org.springframework.test.AbstractTransactionalSpri ngContextTests.onSetUp(AbstractTransactionalSpring ContextTests.java:203)
at org.springframework.test.AbstractSingleSpringConte xtTests.setUp(AbstractSingleSpringContextTests.jav a:104)
at junit.framework.TestCase.runBare(TestCase.java:132 )
at org.springframework.test.ConditionalTestCase.runBa re(ConditionalTestCase.java:79)
at org.springframework.test.annotation.AbstractAnnota tionAwareTransactionalTests.access$1(AbstractAnnot ationAwareTransactionalTests.java:1)
at org.springframework.test.annotation.AbstractAnnota tionAwareTransactionalTests$1.run(AbstractAnnotati onAwareTransactionalTests.java:179)
at org.springframework.test.annotation.AbstractAnnota tionAwareTransactionalTests.runTest(AbstractAnnota tionAwareTransactionalTests.java:287)
at org.springframework.test.annotation.AbstractAnnota tionAwareTransactionalTests.runTestTimed(AbstractA nnotationAwareTransactionalTests.java:258)
at org.springframework.test.annotation.AbstractAnnota tionAwareTransactionalTests.runBare(AbstractAnnota tionAwareTransactionalTests.java:176)
at org.springframework.test.jpa.AbstractJpaTests.runB are(AbstractJpaTests.java:195)
at org.springframework.test.jpa.AbstractJpaTests.runB are(AbstractJpaTests.java:276)
at junit.framework.TestResult$1.protect(TestResult.ja va:110)
at junit.framework.TestResult.runProtected(TestResult .java:128)
at junit.framework.TestResult.run(TestResult.java:113 )
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:2 32)
at junit.framework.TestSuite.run(TestSuite.java:227)
at org.junit.internal.runners.JUnit38ClassRunner.run( JUnit38ClassRunner.java:83)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestR eference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecutio n.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.main(RemoteTestRunner.java:197)

I found a lot of google results which says JPA is not auto-registering the objects.

Synopsis of jpa config:
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerE ntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="Model" />
<property name="persistenceXmlLocation" value="classpath:/META-INF/persistence-test.xml" />
<property name="jpaPropertyMap">
<map>
<entry key="hibernate.search.default.directory_provider" value="org.hibernate.search.store.impl.FSDirectory Provider" />
<entry key="hibernate.search.default.indexBase" value="${fileAttachment.baseDir}/search_indexes" />
<entry key="hibernate.search.indexing_strategy" value="manual" />
<entry key="hibernate.search.worker.batch_size" value="50" />
</map>
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.Hibernat eJpaVendorAdapter">
<property name="showSql" value="${jpa.showSql}" />
<property name="generateDdl" value="${jpa.generateDdl}" />
<property name="databasePlatform" value="${jpa.databasePlatform}" />
</bean>
</property>
<property name="loadTimeWeaver">
<bean class="org.springframework.instrument.classloading .InstrumentationLoadTimeWeaver" />
</property>
</bean>


<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionM anager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="dataSource" ref="dataSource" />
</bean>

<aop:aspectj-autoproxy />
<tx:annotation-driven transaction-manager="transactionManager" />

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maxActive" value="${jdbc.maxActive}" />
<property name="initialSize" value="${jdbc.initialSize}" />
</bean>

Can anyone help me to get past this error?