org.apache.openjpa.persistence.ArgumentException: There is no query with the name "getEmpployeesData" defined for any of the known persistent classes

Exception while trying a add a new Persistent Entity.

I added a new table in the database for Employee records. Created a bean for the same with a named query as shown below.

 @Entity
@NamedQuery(name = "getEmployeeData", query = "select EmployeeEntity from EMPLOYEE  EmployeeEntity where EmployeeEntity.DEPT=:deptId")
@Table(name = "EMPLOYEE")
public class EmployeeEntity {

}
Code to invoke this query.

EntityManager em;
....
....
Query getEmployeeDataQuery = em.createNamedQuery("getEmployeeData");
getEmployeeDataQuery.setParameter("deptId", deptId);           
ArrayList<Employee> employeeList= getEmployeeDataQuery .getResultList();



While trying to invoke this query I am getting following exception : 



SEVERE: Exception Occured : EJB Exception: ; nested exception is:
        <openjpa-1.1.1-SNAPSHOT-r422266:1172209 fatal user error> org.apache.openjpa.persistence.ArgumentException: There is no query with the name "getEmpployeesData" defined for any of the known persistent classes: [com.test.EmployeeEntity,com.test.EmployeeEntity].; nested exception is: <openjpa-1.1.1-SNAPSHOT-r422266:1172209 fatal user error> org.apache.openjpa.persistence.ArgumentException: There is no query with the name "getEmpployeesData" defined for any of the known persistent classe
com.test.EmployeeEntity]
javax.ejb.EJBException: EJB Exception: ; nested exception is:
        <openjpa-1.1.1-SNAPSHOT-r422266:1172209 fatal user error> org.apache.openjpa.persistence.ArgumentException: There is no query with the name "getEmpployeesData" defined for any of the known persistent classes: [com.test.EmployeeEntity, com.test.EmployeeEntity].; nested exception is: <openjpa-1.1.1-SNAPSHOT-r422266:1172209 fatal user error> org.apache.openjpa.persistence.ArgumentException: There is no query with the name "getEmpployeesData" defined for any of the known persistent classe
s: [com.test.EmployeeEntity].
<openjpa-1.1.1-SNAPSHOT-r422266:1172209 fatal user error> org.apache.openjpa.persistence.ArgumentException: There is no query with the name "getEmpployeesData" defined for any of the known persistent classes: [com.test.EmployeeEntity]
        at org.apache.openjpa.meta.MetaDataRepository.getQueryMetaData(MetaDataRepository.java:1596)
        at org.apache.openjpa.persistence.EntityManagerImpl.createNamedQuery(EntityManagerImpl.java:895)
        at org.apache.openjpa.persistence.EntityManagerImpl.createNamedQuery(EntityManagerImpl.java:77)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at weblogic.deployment.BasePersistenceContextProxyImpl.invoke(BasePersistenceContextProxyImpl.java:111)
        at weblogic.deployment.TransactionalEntityManagerProxyImpl.invoke(TransactionalEntityManagerProxyImpl.java:78)
        at weblogic.deployment.BasePersistenceContextProxyImpl.invoke(BasePersistenceContextProxyImpl.java:92)
        at weblogic.deployment.TransactionalEntityManagerProxyImpl.invoke(TransactionalEntityManagerProxyImpl.java:18)
        at $Proxy178.createNamedQuery(Unknown Source)
        at services.EmployeeDataServiceBean.getEmpployeesData(EmployeeDataServiceBean.java:295)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
        at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
        at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
        at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
        at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
        at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at com.oracle.pitchfork.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:34)
        at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
        at com.oracle.pitchfork.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:42)
        at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
        at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
        at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
        at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
        at $Proxy183.getEmpployeesData(Unknown Source)
        at services.EmployeeDataService_4op81c_EmployeeDataServiceImpl.__WL_invoke(Unknown Source)
        at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:40)
        at services.EmployeeDataService_4op81c_EmployeeDataServiceImpl.getEmpployeesData(Unknown Source)
        at services.EmployeeDataService_4op81c_EmployeeDataServiceImpl_CBV.getEmpployeesData(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:85)
        at $Proxy179.getEmpployeesData(Unknown Source)

Solution to the problem :

I forgot to add the persistent entity in my persistence.xml file. It resolved the issue,

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
    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">
    <persistence-unit transaction-type="JTA" name="TestDataService">
        <jta-data-source>TestDataService</jta-data-source>       
        <class>com.test.DeptEntity</class>

        <class>com.test.EmployeeEntity</class>

        <properties>
            <property name="showSql" value="true"/>
            <property name="formatSql" value="true"/>
        </properties>
    </persistence-unit>
</persistence>