Excepción de mapeo: No se puede leer XML al externalizar una consulta nativa nombrada en JPA 2.0
https://stackoverflow.com/questions/8333457
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26-10-2019 - |
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Tengo algunas consultas largas (en cuanto al texto) que estoy tratando de externalizar en un archivo ORM.XML para fines de legibilidad y mantenibilidad, pero sigo obteniendo un Excepción de mapeo: No se puede leer XML.Esto es lo que tengo:
persistencia.xml en src/main/recursos/metainf
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="persistenceUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<mapping-file>edu/kdc/visioncards/pojo/orm.xml</mapping-file>
<class>edu.kdc.visioncards.pojo.AttendanceBreakDown</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>
<property name="hibernate.hbm2ddl.auto" value="create"/>
<property name="hibernate.ejb.naming_strategy" value="org.hibernate.cfg.ImprovedNamingStrategy"/>
<property name="hibernate.connection.charSet" value="UTF-8"/>
</properties>
</persistence-unit>
</persistence>
Un ORM.XML como sigue en src/main/recursos/edu/kdc/visioncards/pojo de la siguiente manera:
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings xmlns:orm="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_2_0.xsd"
version="2.0">
<package>edu.kdc.visioncards.pojo</package>
<named-native-query name="attendanceDetailsBySchoolAndGradingPeriod"
result-class="edu.kdc.visioncards.pojo.AttendanceBreakDown"
result-set-mapping="attendanceBreakDownResults">
<query>
select
a.student_name as student_name
,a.student_id as student_id
,a.enrollment_status as enrollment_status
,a.attendance_days as attendance_days
,a.Attendance_Level as attendance_level
,b.authorized_absences as auth_abs
,nvl(c.unx_abs,0) as unx_abs
,nvl(d.x_abs, 0) as x_abs
,nvl(e.tardies, 0) as tardies
,a.att_pct
from
(select
s.student_name
,s.student_id
,s.student_activity_indicator as enrollment_status
,sum(fas.attendance_days) as attendance_days
,round((sum(fas.attendance_value) / sum(fas.attendance_days))* 100,2) as att_pct
,case when(round((sum(fas.attendance_value) / sum(fas.attendance_days))* 100,2) <= 87)
then 'Intervene'
when(round((sum(fas.attendance_value) / sum(fas.attendance_days))* 100,2) >87 and
round((sum(fas.attendance_value) / sum(fas.attendance_days))* 100,2) <= 89.9)
then 'Concern'
when(round((sum(fas.attendance_value) / sum(fas.attendance_days))* 100,2) >=90 and
round((sum(fas.attendance_value) / sum(fas.attendance_days))* 100,2) <= 95)
then 'Baseline'
else 'Is Clean'
end AS Attendance_Level
from K12INTEL_DW.ftbl_attendance_stumonabssum fas
inner join k12intel_dw.dtbl_students s
on fas.student_key = s.student_key
inner join K12INTEL_DW.dtbl_schools ds
on fas.school_key = ds.school_key
inner join k12intel_dw.dtbl_school_dates dsd
on fas.school_dates_key = dsd.school_dates_key
where dsd.rolling_local_school_yr_number = 0
and ds.school_code = ?
and s.student_activity_indicator = 'Active'
and fas.LOCAL_GRADING_PERIOD = ?
and s.student_current_grade_level = ?
group by s.student_id, s.student_name, s.student_activity_indicator
having (sum(fas.attendance_value) / sum(fas.attendance_days)) < .95
) a
inner join
(select t.student_id
,sum(t.auth_abs) as authorized_absences
from(
select dstud.student_id
,case when(fas.excused_authorized) in ('NA', 'No')
then 0 else 1
end as auth_abs
from K12INTEL_DW.ftbl_attendance_stumonabssum fas
inner join K12INTEL_DW.dtbl_schools ds
on fas.school_key = ds.school_key
inner join k12intel_dw.dtbl_students dstud
on dstud.student_key = fas.student_key
inner join k12intel_dw.dtbl_school_dates dsd
on dsd.school_dates_key = fas.school_dates_key
where dsd.rolling_local_school_yr_number = 0
and dstud.student_activity_indicator = 'Active'
and ds.school_code = ?
and fas.LOCAL_GRADING_PERIOD = ?
and dstud.student_current_grade_level = ?
) t
group by t.student_id)b
on b.student_id = a.student_id
left outer join
( select dstud.student_id,
count(fas.excused_absence) as unx_abs
from K12INTEL_DW.ftbl_attendance_stumonabssum fas
inner join K12INTEL_DW.dtbl_schools ds
on fas.school_key = ds.school_key
inner join k12intel_dw.dtbl_students dstud
on dstud.student_key = fas.student_key
inner join k12intel_dw.dtbl_school_dates dsd
on dsd.school_dates_key = fas.school_dates_key
where dsd.rolling_local_school_yr_number = 0
and dstud.student_activity_indicator = 'Active'
and fas.excused_absence = 'Un-excused absence'
and ds.school_code = ?
and fas.LOCAL_GRADING_PERIOD = ?
and dstud.student_current_grade_level = ?
group by dstud.student_id
) c
on c.student_id = a.student_id
left outer join
(select dstud.student_id, count(fas.excused_absence) as x_abs
from K12INTEL_DW.ftbl_attendance_stumonabssum fas
inner join K12INTEL_DW.dtbl_schools ds
on fas.school_key = ds.school_key
inner join k12intel_dw.dtbl_students dstud
on dstud.student_key = fas.student_key
inner join k12intel_dw.dtbl_school_dates dsd
on dsd.school_dates_key = fas.school_dates_key
where dsd.rolling_local_school_yr_number = 0
and dstud.student_activity_indicator = 'Active'
and fas.excused_absence = 'Excused absence'
and ds.school_code = ?
and fas.LOCAL_GRADING_PERIOD = ?
and dstud.student_current_grade_level = ?
group by dstud.student_id) d
on d.student_id = a.student_id
left outer join
(select s.student_id
,sum(a.attendance_value) tardies
from k12intel_dw.ftbl_attendance a
inner join k12intel_dw.dtbl_school_dates sd
on a.school_dates_key = sd.school_dates_key
inner join k12intel_dw.dtbl_students s
on a.student_key = s.student_key
inner join k12intel_dw.dtbl_schools sc
on sc.school_key = s.school_key
where 1=1
and sd.rolling_local_school_yr_number = 0
and a.attendance_type in ('LA','LP','LF')
and sc.school_code= ?
and s.student_current_grade_level = ?
group by s.student_id) e
on e.student_id = a.student_id
</query>
</named-native-query>
<sql-result-set-mapping name="attendanceBreakDownResults">
<entity-result entity-class="edu.kdc.visioncards.pojo.AttendanceBreakDown">
<field-result name="studentName" column="student_name"/>
<field-result name="pupilId" column="student_id"/>
<field-result name="enrollmentStatus" column="enrollment_status"/>
<field-result name="attendanceLevel" column="attendance_level"/>
<field-result name="attendanceDays" column="attendance_days"/>
<field-result name="authorizedAbsences" column="auth_abs"/>
<field-result name="unexcusedAbsences" column="unx_abs"/>
<field-result name="excusedAbsences" column="x_abs"/>
<field-result name="tardies" column="tardies"/>
<field-result name="attendancePct" column="att_pct"/>
</entity-result>
</sql-result-set-mapping>
</entity-mappings>
Así es como yo Inyectar el entitymanager en mi dao
@Repository
public class K12DaoImpl implements K12DaoManager{
@PersistenceContext
private EntityManager em;
@Override
@Transactional(readOnly = true)
public List<AttendanceBreakDown> getAttendanceBreakDownBySchoolAndGP(int school, String gradingPeriod, String gradeLevel) {
Object values[] = new Object[]{new Integer(school), gradingPeriod, gradeLevel,
new Integer(school), gradingPeriod, gradeLevel,
new Integer(school), gradingPeriod, gradeLevel,
new Integer(school), gradingPeriod, gradeLevel,
new Integer(school), gradeLevel
};
Query query = em.createNamedQuery("attendanceDetailsBySchoolAndGradingPeriod");
for (int i = 0; i < values.length; i++) {
query.setParameter(i, values[i]);
}
List<AttendanceBreakDown> list = query.getResultList();
return list;
}
}
Cuando hago un MVN Clean Tomcat: correr Tengo un InvalidMappingException: No se puede leer XML Parece que no está encontrando el ORM.XML En cualquier lugar, ya que no puedo ver dónde está el error de mapeo.
He externalizado consultas con éxito usando Hibernate antes al tener archivos HBM que mapearán consultas a objetos y tengo esos archivos HBM referenciados en Hibernate.cfg.xml, pero ahora quiero usar JPA 2.0 directamente usando EntityManager.
Agregar rastreo de pila por comentario a continuación (esta traza de pila es de usar archivos XML en lugar de anotaciones
2011-12-01 14:32:49,387 [Thread-2] ERROR org.hibernate.util.xml.ErrorLogger - Error parsing XML (6) : cvc-elt.1: Cannot find the declaration of element 'entity-mappings'.
2011-12-01 14:32:49,434 [Thread-2] ERROR org.hibernate.util.xml.ErrorLogger - Error parsing XML (2) : cvc-elt.1: Cannot find the declaration of element 'entity-mappings'.
2011-12-01 14:32:49,450 [Thread-2] ERROR org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'k12DaoImpl': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in file [C:\stsworkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\visioncards\WEB-INF\classes\META-INF\spring\applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.InvalidMappingException: Unable to read XML
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:341)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in file [C:\stsworkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\visioncards\WEB-INF\classes\META-INF\spring\applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.InvalidMappingException: Unable to read XML
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findDefaultEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:529)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:495)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:656)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:629)
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:147)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:338)
... 21 more
Caused by: org.hibernate.InvalidMappingException: Unable to read XML
at org.hibernate.util.xml.MappingReader.readMappingDocument(MappingReader.java:101)
at org.hibernate.ejb.Ejb3Configuration.addXMLEntities(Ejb3Configuration.java:734)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:601)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:225)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:308)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
... 34 more
Caused by: org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'entity-mappings'.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1915)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:705)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3103)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:922)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.util.xml.MappingReader.readMappingDocument(MappingReader.java:75)
... 41 more
Otra actualización: tratando de hacerlo basado en anotaciones
Así que he comentado la etiqueta en persistencia.xml y creé las siguientes anotaciones en mi pojo
package edu.kdc.visioncards.pojo;
import javax.persistence.EntityResult;
import javax.persistence.FieldResult;
import javax.persistence.NamedNativeQuery;
import javax.persistence.SqlResultSetMapping;
@NamedNativeQuery(
name="attendanceDetailsBySchoolAndGradingPeriod",
query="SAME QUERY HERE AS THE ONE IN ORM.XML ABOVE",
resultClass = AttendanceBreakDown.class,
resultSetMapping="attendanceBreakDownResults"
)
@SqlResultSetMapping(
name="attendanceBreakDownResults",
entities=@EntityResult(entityClass=edu.kdc.visioncards.pojo.AttendanceBreakDown.class,
fields={
@FieldResult(name="studentName", column="student_name"),
@FieldResult(name="studentName", column="student_name"),
@FieldResult(name="pupilId", column="student_id"),
@FieldResult(name="enrollmentStatus", column="enrollment_status"),
@FieldResult(name="attendanceLevel", column="attendance_level"),
@FieldResult(name="attendanceDays", column="attendance_days"),
@FieldResult(name="authorizedAbsences", column="auth_abs"),
@FieldResult(name="unexcusedAbsences", column="unx_abs"),
@FieldResult(name="excusedAbsences", column="x_abs"),
@FieldResult(name="tardies", column="tardies"),
@FieldResult(name="attendancePct", column="att_pct")
}
)
)
public class AttendanceBreakDown {
private String studentName;
private String pupilId;
private String enrollmentStatus;
private String attendanceLevel;
private String attendanceDays;
private String authorizedAbsences;
private String unexcusedAbsences;
private String excusedAbsences;
private String tardies;
private String attendancePct;
public String getStudentName() {
return studentName;
}
public void setStudentName(String studentName) {
this.studentName = studentName;
}
public String getPupilId() {
return pupilId;
}
public void setPupilId(String pupilId) {
this.pupilId = pupilId;
}
public String getEnrollmentStatus() {
return enrollmentStatus;
}
public void setEnrollmentStatus(String enrollmentStatus) {
this.enrollmentStatus = enrollmentStatus;
}
public String getAttendanceLevel() {
return attendanceLevel;
}
public void setAttendanceLevel(String attendanceLevel) {
this.attendanceLevel = attendanceLevel;
}
public String getAttendanceDays() {
return attendanceDays;
}
public void setAttendanceDays(String attendanceDays) {
this.attendanceDays = attendanceDays;
}
public String getAuthorizedAbsences() {
return authorizedAbsences;
}
public void setAuthorizedAbsences(String authorizedAbsences) {
this.authorizedAbsences = authorizedAbsences;
}
public String getUnexcusedAbsences() {
return unexcusedAbsences;
}
public void setUnexcusedAbsences(String unexcusedAbsences) {
this.unexcusedAbsences = unexcusedAbsences;
}
public String getExcusedAbsences() {
return excusedAbsences;
}
public void setExcusedAbsences(String excusedAbsences) {
this.excusedAbsences = excusedAbsences;
}
public String getTardies() {
return tardies;
}
public void setTardies(String tardies) {
this.tardies = tardies;
}
public String getAttendancePct() {
return attendancePct;
}
public void setAttendancePct(String attendancePct) {
this.attendancePct = attendancePct;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("AttendanceBreakDown [studentName=").append(studentName)
.append(", pupilId=").append(pupilId)
.append(", enrollmentStatus=").append(enrollmentStatus)
.append(", attendanceLevel=").append(attendanceLevel)
.append(", attendanceDays=").append(attendanceDays)
.append(", authorizedAbsences=").append(authorizedAbsences)
.append(", unexcusedAbsences=").append(unexcusedAbsences)
.append(", excusedAbsences=").append(excusedAbsences)
.append(", tardies=").append(tardies)
.append(", attendancePct=").append(attendancePct).append("]");
return builder.toString();
}
}
Con el estilo basado en la anotación obtengo A:
Named query not found: attendanceDetailsBySchoolAndGradingPeriod; nested exception is java.lang.IllegalArgumentException: Named query not found: attendanceDetailsBySchoolAndGradingPeriod
Con el siguiente StackTrace:
org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:286)
org.springframework.orm.jpa.aspectj.JpaExceptionTranslatorAspect.ajc$afterThrowing$org_springframework_orm_jpa_aspectj_JpaExceptionTranslatorAspect$1$18a1ac9(JpaExceptionTranslatorAspect.aj:15)
edu.kdc.visioncards.dao.K12DaoImpl.getAttendanceBreakDownBySchoolAndGP(K12DaoImpl.java:32)
edu.kdc.visioncards.service.K12ManagerImpl.getAttendanceBreakDownBySchoolAndGradingPeriod(K12ManagerImpl.java:22)
edu.kdc.visioncards.web.PrimerController.test(PrimerController.java:34)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
Solución
He puesto la respuesta a este problema en esta otra pregunta que hice de manera diferente:
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