Problema com conexao com o oracle xe E TDD

<blockquote>javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection

at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:614)

at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:226)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:198)

at $Proxy51.persist(Unknown Source)

at br.com.ofm.erp.testes.aceitacao.DAOTestesHelper.inserirEntidade(DAOTestesHelper.java:797)

at br.com.ofm.erp.testes.aceitacao.DAOTestesHelper.criaInsereEmpresa(DAOTestesHelper.java:417)

at br.com.ofm.erp.testes.aceitacao.DAOTestesHelper.criaInsereEmpresa(DAOTestesHelper.java:500)

at br.com.ofm.erp.testes.aceitacao.DAOTestesHelper$$FastClassByCGLIB$$b732bc90.invoke(<generated>)

at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)

at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)

at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)

at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)

at br.com.ofm.erp.testes.aceitacao.DAOTestesHelper$$EnhancerByCGLIB$$715a5e93.criaInsereEmpresa(<generated>)

at br.com.ofm.erp.orcamento.aceitacao.ManterFaseOrcamentariaAceitacaoStoryTest.setup(ManterFaseOrcamentariaAceitacaoStoryTest.java:46)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.springframework.test.context.junit4.SpringMethodRoadie.runBefores(SpringMethodRoadie.java:273)

at org.springframework.test.context.junit4.SpringMethodRoadie$RunBeforesThenTestThenAfters.run(SpringMethodRoadie.java:332)

at org.springframework.test.context.junit4.SpringMethodRoadie.runWithRepetitions(SpringMethodRoadie.java:217)

at org.springframework.test.context.junit4.SpringMethodRoadie.runTest(SpringMethodRoadie.java:197)

at org.springframework.test.context.junit4.SpringMethodRoadie.run(SpringMethodRoadie.java:143)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:160)

at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:59)

at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:52)

at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)

at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)

at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:50)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:97)

at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:45)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection

at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126)

at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114)

at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)

at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)

at org.hibernate.jdbc.AbstractBatcher.openConnection(AbstractBatcher.java:590)

at org.hibernate.engine.transaction.Isolater$JdbcDelegate.delegateWork(Isolater.java:202)

at org.hibernate.engine.transaction.Isolater.doIsolatedWork(Isolater.java:67)

at org.hibernate.engine.TransactionHelper.doWorkInNewTransaction(TransactionHelper.java:74)

at org.hibernate.id.MultipleHiLoPerTableGenerator.generate(MultipleHiLoPerTableGenerator.java:210)

at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:122)

at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:49)

at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:154)

at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:110)

at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)

at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:646)

at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:620)

at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:624)

at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:220)

… 40 more

Caused by: java.sql.SQLException: Listener refused the connection with the following error:

ORA-12519, TNS:no appropriate service handler found

The Connection descriptor used by the client was:

localhost:1521:xe

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:261)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:174)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:165)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:149)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119)
at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:46)
at org.hibernate.jdbc.AbstractBatcher.openConnection(AbstractBatcher.java:587)
... 53 more</blockquote>