Tudo Sobre Eletronica: [java-br] Erro JPA

Pessoal estou fazendo um servlet (Glassfish 3.0.1) com JPA, na hora de
acessar o banco está dando o seguinte problema:

Call: SELECT id_operadores, data_hora_exclusao, usuario, senha,
id_situacoes, tipo, id_operadores_usuario, nome, cpf, data_hora_cadastro,
id_usuarios FROM operadores_tbl WHERE ((usuario = ?) AND (senha = ?))
bind => [1@criar, 1]
Query: ReadAllQuery(name="OperadoresTbl.findByUsuarioSenha"
referenceClass=OperadoresTbl sql="SELECT id_operadores, data_hora_exclusao,
usuario, senha, id_situacoes, tipo, id_operadores_usuario, nome, cpf,
data_hora_cadastro, id_usuarios FROM operadores_tbl WHERE ((usuario = ?) AND
(senha = ?))")
at
org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:309)
at
org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:138)
at
org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:94)
at
org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)
at
org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:327)
at
org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:295)
at
org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.reconnect(DatasourceAccessor.java:558)
at
org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.reconnect(DatabaseAccessor.java:1436)
at
org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.incrementCallCount(DatasourceAccessor.java:302)
at
org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:574)
at
org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:530)
at
org.eclipse.persistence.sessions.server.ServerSession.executeCall(ServerSession.java:529)
at
org.eclipse.persistence.internal.sessions.IsolatedClientSession.executeCall(IsolatedClientSession.java:133)
at
org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:205)
at
org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:191)
at
org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:262)
at
org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.selectAllRows(DatasourceCallQueryMechanism.java:618)
at
org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:2537)
at
org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRows(ExpressionQueryMechanism.java:2496)
at
org.eclipse.persistence.queries.ReadAllQuery.executeObjectLevelReadQuery(ReadAllQuery.java:455)
at
org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:997)
at
org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:675)
at
org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:958)
at
org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:432)
at
org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1021)
at
org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2857)
at
org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1225)
at
org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at
org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at
org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at
org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at
org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1207)
at
org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1181)
at
org.eclipse.persistence.internal.jpa.EJBQueryImpl.executeReadQuery(EJBQueryImpl.java:453)
at
org.eclipse.persistence.internal.jpa.EJBQueryImpl.getResultList(EJBQueryImpl.java:681)
at
br.com.grupocriar.codigos.bd.dao.OperadoresDAO.getOperador(OperadoresDAO.java:19)
at
br.com.grupocriar.codigos.controle.OperacaoLogin.processar(OperacaoLogin.java:41)
at br.com.grupocriar.codigos.ws.Login.logar(Login.java:36)
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.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:149)
at
com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67)
at
com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:259)
at
com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:83)
at
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:133)
at
com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:71)
at
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:990)
at
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:941)
at
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:932)
at
com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:384)
at
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:451)
at
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:632)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at
org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at
com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.SQLException: Error in allocating a connection. Cause:
No PasswordCredential found
at com.sun.gjc.spi.base.DataSource.getConnection(DataSource.java:112)
at
org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:126)

Grato
Lucas

[As partes desta mensagem que não continham texto foram removidas]